1

120	D.V. Denisov, Y.Y. Villanueva, K.A Lorincz, S. May, R.J. Wijngaarden Relation between self-organized criticality and grain aspect ratio in granular piles. Phys.Rev. E 85 (2012) 051309
119	D. V. Denisov, Y. Y. Villanueva, and R. J. Wijngaarden Simulation of a Casimir-like effect in a granular pile with avalanches Phys. Rev. E 83, (2011) 061301
118	Y. Y. Villanueva, D. V. Denisov, S. de Man, and R. J. Wijngaarden Casimir-like effect on a granular pile Phys. Rev. E82 (2010)041303
117	S. de Man, K. Heeck, R.J. Wijngaarden, and D. Iannuzzi Contact potentials in Casimir force setups: An experimental analysis J. Vac. Science Techn. B28 (2010) C4A25
116	S. De Man, K. Heeck, K. Smith, R.J. Wijngaarden and D. Iannuzzi Casimir Force Experiments in Air: Two birds with one stone Int. J. Mod. Phys. A25 (2010) 2231-2239
115	A. Baldi,G. K. Pálsson, M. Gonzalez-Silveira, H. Schreuders, M. Slaman,J. H. Rector, G. Krishnan, B. J. Kooi, G. S. Walker, M. W. Fay, B. Hjörvarsson, R. J. Wijngaarden, B. Dam, and R. Griessen Mg/Ti multilayers: Structural and hydrogen absorption properties Phys. Rev. B 81 (2010) 224203
114	D.G. Gheorghe, R.J. Wijngaarden, C. Bell, and J. Aarts Magnetization rotation in a superconductor/ferromagnet bilayer ring structure Phys. Rev. B 80 (2009) 144518
113	S. de Man, K. Heeck, R.J. Wijngaarden and D. Iannuzzi Halving the Casimir force with Conductive Oxides Phys. Rev. Lett. 103 (2009) 040402
112	D. Villuendas, D. Gheorghe, A. Hernández-Mínguez, F. Macià, J.M. Hernandez, J. Tejada and R.J. Wijngaarden Magneto-optical imaging of magnetic deflagration in Mn12-Acetate EPL 84 (2008) 67010
111	Kinga A. Lőrincz and Rinke J. Wijngaarden Influence of the driving rate in a two-dimensional rice pile model Phys Rev E 77 (2008) 066110
110	Diana G. Gheorghe ,Rinke J. Wijngaarden, Werner Gillijns, Alejandro V. Silhanek, and Victor V. Moshchalkov Magnetic flux patterns in superconductors deposited on a lattice of magnetic dots: A magneto-optical imaging study Phys Rev B 77 (2008) 054502 and Virtual Journal of Applications of Superconductivity (February 15, 2008)
109	M. Menghini,1 J. Van de Vondel, D. G. Gheorghe, R. J. Wijngaarden, and V. V. Moshchalkov Asymmetry reversal of thermomagnetic avalanches in Pb films with a ratchet pinning potential Phys Rev B 76 (2007) 184515
108.	K.A. Lőrincz and Rinke J. Wijngaarden Edge effect on the power law distribution of granular avalanches Phys. Rev. E 76 (2007) 040301(R)
107.	Mariela Menghini and Rinke J. Wijngaarden Patterns close to the critical field in type-I superconductors Phys. Rev. B 75 (2007) 014529
106.	M. Pasturel, R.J. Wijngaarden, W. Lohstroh, H. Schreuders, M. Slaman, B. Dam, and R. Griessen Influence of the Chemical Potential on the Hydrogen Sorption Kinetics of Mg₂Ni/TM/Pd (TM = transition metal) Trilayers Chem. Mater. 19 (2007) 624-633
105.	D.M. Borsa, W. Lohstroh, R. Gremaud, J.H. Rector, B. Dam, R.J. Wijngaarden, R. Griessen Critical composition dependence of the hydrogenation of Mg_2±δNi thin films Journal of Alloys and Compounds 428 (2007) 34–39
104.	Diana G. Gheorghe, Mariela Menghini, Rinke J. Wijngaarden, Sophie Raedts, Alejandro V. Silhanek, Victor V. Moshchalkov Anisotropic avalanches and flux penetration in patterned superconductors Physica C 437-438 (2006) 69-72
103.	Diana G. Gheorghe, Mariela Menghini, Rinke J. Wijngaarden, Ernst Helmut Brandt, Grigorii P. Mikitik, Wilfried Goldacker Flux penetration into superconducting Nb3Sn in oblique magnetic fields Phys. Rev.B 73 (2006) 224512 and Virtual Journal of Applications of Superconductivity (June 15, 2006)
102.	R.J. Wijngaarden, M.S. Welling, C.M. Aegerter and M. Menghini Avalanches and Self-Organized Criticality in Superconductors Europ. Phys. J. B 50 (2006) 113
101 .	C. M. Aegerter, M. S. Welling and R. J. Wijngaarden Surface roughening and self-organized criticality: The influence of quenched disorder Europhysics Lett. 74 (2006) 397
100.	M. Pannetier, C. Fermon, P. Vedrine, M.S. Welling, R.J. Wijngaarden Field line distribution in a mixed sensor Sensors and Actuators A 129 (2006) 146-149
99.	M. Menghini and R. J. Wijngaarden Dynamics of stripe patterns in type-I superconductors subject to a rotating field Phys. Rev. B 72 (2005) 172503
98.	R.J. Wijngaarden, K.A. Lorincz, C.M. Aegerter Nonlinear Dynamics and Fractal Avalanches in a Pile of Rice in: M. Ausloos and M. Dirickx (Eds.), The Logistic Map and the Route to Chaos:From The Beginnings to Modern Applications (Springer 2005) p. 317-335 preprint
97.	M. Pannetier, C. Fermon, G. Le Goff, J. Simola, E. Kerr, M.S. Welling, R.J. Wiijngaarden. Ultra-sensitive field sensors – An alternative to SQUIDs. IEEE Trans. Appl. Superconductivity 15 (2005) 892-895 preprint
96.	M. S. Welling, C. M. Aegerter, and R. J. Wijngaarden Self-organized criticality induced by quenched disorder: Experiments on flux avalanches in NbH_x films Phys. Rev. B 71 (2005) 104515
95.	M. Menghini, R. J. Wijngaarden, A. V. Silhanek, S. Raedts, and V. V. Moshchalkov Dendritic flux penetration in Pb films with a periodic array of antidots Phys Rev B 71 (2005)104506 and Virtual Journal of Applications of Superconductivity (March 15,2005)
94.	Igor S. Aranson, Alex Gurevich, Marco S. Welling, Rinke J. Wijngaarden, Vitalii K. Vlasko-Vlasov, Valerii M. Vinokur, and Ulrich Welp Dendritic Flux Avalanches and Nonlocal Electrodynamics in Thin Superconducting Films Phys.Rev.Lett. 94 (2005) 037002
93.	C.M.Aegerter, M.S.Welling and R.J.Wijngaarden Dynamic roughening of the magnetic flux landscape in YBa₂Cu₃O_7-x Physica A 347 (2005) 363–374
92	K.A.Lorincz,M.S.Welling,J.H.Rector,R.J.Wijngaarden Flux penetration in patterned superconducting thin films with multiply connected geometry Physica C 411 (2004) 1-10
91.	M. S. Welling, R. J. Westerwaal, W. Lohstroh, and R. J. Wijngaarden, Huge compact flux avalanches in superconducting Nb thin films Physica C 411 (2004) 11-17
90.	C. M. Aegerter, K. A. Lörincz and R. J. Wijngaarden A multi-scaling analysis of the surface of a three dimensional pile of rice. Europhys. Lett. 67 (2004) 342-348 (preprint)
89.	M.S.Welling a ,C.M.Aegerter,and R.J.Wijngaarden Noise correction for roughening analysis of magnetic flux profiles in YBa₂Cu₃O_7-x Eur.Phys.J.B 38 (2004) 93-98
88.	M.S. Welling, C.M. Aegerter, R.J. Westerwaal, S. Enache, R.J. Wijngaarden, and R. Griessen Effect of hydrogen uptake and substrate orientation on the flux penetration in NbH_x thin films Physica C 406 (2004) 100-106
87.	A. Remhof, D. van Mechelen and R.J. Wijngaarden Refraction of Diffusion Fronts: Hydrogen in Y/V Bilayers in: Advanced Materials for Energy Conversion II [pp. 235-241] (preprint) edited by D. Chandra, R.G. Bautista, and L. Schlapbach
86.	M.S. Welling, R.J. Wijngaarden, C.M. Aegerter, R. Wördenweber and P. Lahl Flux flow anisotropy in superconducting films with a rectangular array of holes Physica C 404 (2004) 410-414
85.	C.M.Aegerter, M.S.Wellng and R.J.Wijngaarden Self-organized criticality in the Bean state in YBa₂Cu₃O_7-x thin films Europhys.Lett.65 (2004) 753-759
84.	C.M. Aegerter, K.A. Lörincz, M.S. Welling and R.J. Wijngaarden Extremal dynamics and the approach to the critical state: Experiments on a three-dimensional pile of rice Phys. Rev. Lett. 92 (2004) 058702.
83.	M.S. Welling, C.M. Aegerter, R.J. Wijngaarden and R. Griessen Effect of substrate orientation and hydrogen impurities on flux penetration in Nb thin films in: Magneto-Optical Imaging, T.H. Johansen, D.V. Shantsev (eds.) NATO SCIENCE SERIES: II: Mathematics, Physics and Chemistry :Volume 142, p215-222 (Kluwer Academic Publ. Dordrecht 2003) (preprint)
82.	R.J. Wijngaarden, C.M. Aegerter, M.S. Welling and K. Heeck MO-imaging of pattern formation in the vortex landscape in: Magneto-Optical Imaging, T.H. Johansen, D.V. Shantsev (eds.) NATO SCIENCE SERIES: II: Mathematics, Physics and Chemistry :Volume 142, p 61-70 (Kluwer Academic Publ. Dordrecht 2003) (preprint)
81.	C. M. Aegerter, R. Günther, and R. J. Wijngaarden Avalanche dynamics, surface roughening, and self-organized criticality: Experiments on a three-dimensional pile of rice Phys. Rev. E 67(2003) 051306
80.	A. Remhof, R. J. Wijngaarden and R. Griessen Refraction-like behaviour of hydrogen diffusion fronts J. Alloys and Compounds, 356 (2003) 300-304
79.	A. Remhof, R.J. Wijngaarden and R. Griessen Refraction and reflection of diffusion fronts Phys. Rev. Lett. 90 (2003) 145502
78.	A. Remhof, J.L.M. van Mechelen, N.J. Koeman, J.H. Rector, R.J. Wijngaarden, R. Griessen Generation and detection of H electrodiffusion waves Rev. Scientific Instr. 74 (2003) 445-447
77.	J. Maunuksela , M. Myllys , J. Merikoski , J. Timonen , T. Kärkkäinen , M.S. Welling , R.J. Wijngaarden Determination of the stochastic evolution equation from noisy experimental data European Physical Journal B 33 (2003) 193-202
76.	M.S. Welling, C.M. Aegerter and R.J. Wijngaarden, Structural similarity between the magnetic flux profile in superconductors and the surface of a 2d rice pile Europhysics Letters 61 (2003) 473-479
75.	M. Pannetier, R.J. Wijngaarden, I. Fløan, J. Rector, B. Dam, R. Griessen, P. Lahl, R. Wördenweber Unexpected fourfold symmetry in the resistivity of patterned superconductors Phys. Rev. B 67 (2003) 212501 and Virtual Journal of Applications of Superconductivity 4 (2003) issue 12
74.	A.F.T. Hoekstra, A.S. Roy, T.F. Rosenbaum, R. Griessen, R.J. Wijngaarden, N.J. Koeman Light-induced metal-insulator transition in a switchable mirror Phys. Rev. Lett 86 (2001) 5349-5352
73.	M. Pannetier, F.C.Klaassen, R.J.Wijngaarden, M.Welling, K. Heeck, J.M.Huijbregtse, B.Dam, R.Griessen Magneto-optical investigation of flux penetration in a superconducting ring Phys. Rev B 64 (2001) 144505
72.	N. Saha, R. Surdeanu, M. Marchevsky, G.J. Nieuwenhuys, C.D. Dewhurst, R.J. Wijngaarden, D.M. Paul, P.H. Kes Magnetic twin boundaries and flux pinning in the antiferromagnetic superconductor ErNi₂B₂C Phys. Rev. B 63 (2001) 020502
71.	R.J. Wijngaarden, K. Heeck, M. Welling, R. Limburg, M.Pannetier, K. van Zetten, V.L.G. Roorda and A.R. Voorwinden Fast imaging polarimeter for magneto-optical investigations Rev. Sci. Instruments 72 (2001) 2661-2664
70.	R.J. Wijngaarden, R. Surdeanu, J.M. Huijbregtse. J.H. Rector, B. Dam, J. Einfeld, R. Wördenweber and R. Griessen Pattern formation due to non-linear vortex diffusion Physica C 341-348 (2000) 1011-1014
69.	M. Pannetier, R.J. Wijngaarden, R. Surdeanu, J.M. Huijbregtse, K. Heeck, B. Dam and R. Griessen Magneto-optical observation of the influence of an artificial periodic magnetic pattern on the pinning of a YBa₂Cu₃O_7-_d thin film. Physica C 341-348 (2000) 1019-1022
68.	R.Surdeanu, R.J. Wijngaarden, J. Einfeld , R. Wördenweber and R. Griessen Visualization of novel flux dynamics in YBa₂Cu₃O_7-_d thin films with antidots Europhysics Lett. 54(2001) 682-687
67.	R.J. Wijngaarden, J.N. Huiberts, D. Nagengast, J.H. Rector, R. Griessen, M. Hanfland and F. Zontone Towards a metallic YH₃ phase at high pressure J. Alloys and Compounds 308 (2000) 44-48
66.	R.Surdeanu, R.J. Wijngaarden, E. Visser, B. Dam, J. Rector and R. Griessen Kinetic Roughening of penetrating flux fronts in high-T_c thin film superconductors Phys.Rev.Lett. 83 (1999) 2054-2057
65.	Surdeanu R. Wijngaarden RJ. Dam B. Rector J. Griessen R. Rossel C. Ren ZF. Wang JH. Anisotropy Induced Crossover from fractal to non-fractal fluxpenetration in high-T_c superconducting thin films. in "Physics and Materials Science of Vortex States, Flux Pinning and Dynamics", Kluwer Academic Publishers, NATO Science Series, Series E: Applied Sciences - Vol. 356 (1999), p. 291-306.
64.	R.J. Wijngaarden, D. Tristan Jover and R. Griessen Intrinsic and carrier density effects on the pressure dependence of T_c of high temperature superconductors Physica B 265 (1999) 128-135
63.	M. Werner, G. Brandstätter, F.M. Sauerzopf, H.W. Weber, A. Hoekstra, R. Surdeanu, R.J. Wijngaarden, R. Griessen, Y. Abulafia, Y. Yeshurun, K. Winzer and B.W. Veal, Comparative study of global and local magnitization measurements on single crystalline high-T_c superconductors Physica C 303 (1998) 191-201
62.	R. Surdeanu, R.J. Wijngaarden, B. Dam, J. Rector, R. Griessen, C. Rossel, Z.F. Ren and J.H. Wang Crossover between fractal and non-fractal flux penetration in high-temperature superconducting thin films Phys Rev B 58 (1998) 12467-12477
61.	R.J. Wijngaarden, K. Heeck, H.J.W. Spoelder, R. Surdeanu and R. Griessen Fast determination of 2D current patterns in flat conductors from measurement of their magnetic field Physica C 295 (1998) 177
60.	J.N. Huiberts, R. Griessen, R.J. Wijngaarden, M. Kremers and C. van Haesendonck Logarithmic divergence of the electrical resistivity of YH_3-_d Phys.Rev.Lett. 79 (1997) 3724-3727
59.	B. Dam, J. Rector, R. Surdeanu, R.J. Wijngaarden, G. Koster, F. Peerdeman, J. van Berkum, D.G. de Groot and R. Griessen The ab-anisotropy of twinfree YBa₂Cu₃O_7-_d films above and below T_c Physica C 282-287 (1997) 665-666
58.	R.J. Wijngaarden, R. Surdeanu, R.Griessen, A.A. Menovsky, J. Fendrich and W.-K. Kwok Measurement of local currents in superconductors using an in-situ magneto-optical microscope Physica C 282-287 (1997) 2291 - 2292
57.	R. Surdeanu, R.J. Wijngaarden, R.Griessen, C. Rossel, Z.F. Ren and J. H. Wang Crossover from fractal to non-fractal flux penetration in vicinal Tl₂Ba₂CuO₆₊_d thin films. Physica C 282-287 (1997) 2219 - 2220
56.	R.J. Drost, T.W. Li, P.H. Kes, R. Surdeanu, R.J. Wijngaarden and M. Konczykowski Bulk pinning by planer defects in Ti-doped Bi-2212 single crystals Physica C 282-287 (1997) 2241 - 2242
55.	D. Tristan Jover, H. Wilhelm, R.J. Wijngaarden Pressure dependence of the superconducting critical temperature of the Tl_0.5Pb_0.5Sr₂Ca_1-xY_xCu₂O₇ system Phys Rev B 55 (1997) 11832 – 11838
54.	R.J. Wijngaarden, R,. Griessen, J. Fendrich and W.-K. Kwok Influence of twin-planes in YBa₂Cu₃O₇ on flux movement and current flow Phys Rev B 55 (1997) 3268 - 3275
53.	R.J. Wijngaarden, H.J.W. Spoelder, R. Surdeanu and R. Griessen Determination of 2D current patterns in flat superconductors from Magneto-Optical measurements: an efficient inversion scheme Phys Rev B 54 (1996) 6742-6749
52.	M. Werner, F.M. Sauerzopf, H.W. Weber, A. Hoekstra, R. Surdeanu, R.J. Wijngaarden and K. Winzer Comparative study of magnetization and relaxation in YBa₂Cu₃O_7-_d single crystals In: "Proceedings of the 8th International Workshop on Critical Currents in Superconductors", T. Matsushita and K. Yamafuji (eds.), World Sientific, Singapore, 1996, p. 203-206
51.	D. Tristan Jover, R.J. Wijngaarden, R. Griessen, E.M. Haines, J.L. Tallon and R.S. Liu Pressure dependence of the superconducting critical temperature of Tl₂Ba₂Ca₂Cu₃O_10+y and Tl₂Ba₂Ca₃Cu₄O_12+y up to 21 GPa Phys Rev B 54 (1996) 10175-10185
50.	D. Tristan Jover, R.J. Wijngaarden, H. Wilhelm, R. Griessen, S.M. Loureiro, J.-J. Capponi, A. Schilling and H.R. Ott Pressure dependence of the superconducting critical temperature of HgBa₂Ca₂Cu₃O_9+y and HgBa₂Ca₃Cu₄O_10+y up to 30 GPa Phys Rev B 54 (1996) 4265-4275
49.	J.N. Huiberts, J.H. Rector, R.J. Wijngaarden, S. Jetten, D.G. de Groot, B. Dam, N.J. Koeman, R. Griessen, B. Hjorvarsson, S. Olafsson and Y.S. Cho Synthesis of yttriumtrihydride films for ex-situ measurements J. Alloys and Compounds 239 (1996) 158 - 171
48.	J.N. Huiberts, R. Griessen, J.H. Rector, R.J. Wijngaarden, J.P. Dekker, D.G. de Groot and N.J. Koeman Yttrium and lanthanum hydride films with switchable optical properties Nature 380 (1996) 231-234
47.	H.H. Wen, Z.X. Zhao, R.J. Wijngaarden, J. Rector, B.Dam and R. Griessen Nonlinear U(j) dependence determined directly from low-electric-field E-j_s curves in YBa₂Cu₃O_7-_d thin films Phys.Rev.B 52 (1995) 4583
46.	M.R. Koblischka, R.J. Wijngaarden, D.G. de Groot, R. Griessen, A.A. Menovsky, T.W. Li. Study of flux behavior in Bi₂Sr₂CaCu₂O₈ single crystal in external magnetic fields up to 1 T. Physica C 249 (1995) 339-349
45.	M.R. Koblischka and R.J. Wijngaarden Magneto-optical investigations of superconductors Supercond. Sci. and Technol. 8 (1995) 199-213
44.	G. Doornbos, R.J. Wijngaarden and R. Griessen. Model for anomalous transverse voltages in inhomogeneous high-temperature superconductors Physica C 235-240 (1994) 1371-1372
43.	R.J. Wijngaarden, M.R. Koblischka and R. Griessen Flux visualization in high-temperature superconductors using a high resolution magneto-optical microscope Physica C 235-240 (1994) 2699
42.	D. Tristan Jover, R.J. Wijngaarden, A. Schilling, H.R. Ott and R. Griesssen. Pressure dependence of the superconducting critical temperature T_c of HgBa₂Ca₂Cu₃O₈ up to 26 GPa Physica C 235-240 (1994) 893-894
41.	R. Griessen, A. Hoekstra and R.J. Wijngaarden Selfheating versus quantum creep in bulk superconductors Phys. Rev. Lett. 72 (1994) 790-790 (comment)
40.	D. Tristan Jover, R.J. Wijngaarden, R.S. Liu, J.L. Tallon and R. Griessen Superconductivity at 133K in Tl₂Ba₂Ca₂Cu₃O₁₀ under high pressure Physica C 218 (1993) 24-28
39.	R.J. Wijngaarden, E.N. van Eenige, J.J. Scholtz, D. Tristan Jover and R. Griessen Ultra high pressure experiments on high-T_c superconductors In: "High pressure Chemistry, Biochemistry and Materials science", R. Winter and J. Jonas (eds.), NATO ASI Vol. C401, Kluwer Academic Publ., Dordrecht, 1993, p 121-146
38.	E.N. van Eenige, R. Griessen, K. Heeck, H.G. Schnack, R.J. Wijngaarden, J.-Y, Genoud, T. Graf, A. Junod and J. Muller Proximity coupled CuO₂-planes in high T_c superconductors: Evidence from pressure experiments upto 34 GPa on Y₂Ba₄Cu₇O_15.32 Europhysics Lett. 20 (1992) 41-46
37a.	R.J. Wijngaarden, J.J. Scholtz, E.N. van Eenige, K. Heeck and R. Griessen Pressure dependence of high-T_c superconductors In: "Recent trends in High Pressure Research", A.K. Singh, (ed.), Oxford and IBH Publ. Co. Pvt. Ltd., New Delhi 1992, p 425-430
37b.	R.J. Wijngaarden, J.J. Scholtz, E.N. van Eenige, K. Heeck and R. Griessen Pressure dependence of high T_c superconductors High Pressure Research, 9 & 10 (1992) 479-485
36.	R.J. Wijngaarden, E.N. van Eenige, J.J. Scholtz and R. Griessen High pressure changes the charge carrier concentration in high-T_c superconductors: experiments to 50 GPa Physica C 185-198 (1991) 787-788
35.	R.J. Wijngaarden, J.J. Scholtz, E.N. van Eenige and R. Griessen High-T_c superconductors under very high pressure In: "Frontiers of High Pressure Research", H.D. Hochheimer and R.D. Etters, (eds.) NATO ASI series Vol. B286, Plenum Press, New York, NY, 1992, pp.399-417.
34.	E.N. van Eenige, R.J. Wijngaarden and R. Griessen Pressure dependence of T_c in Ca-doped YBa₂Cu₄O₈ up to 16 GPa In: "Frontiers of High Pressure Research", H.D. Hochheimer and R.D. Etters, (eds.) NATO ASI series Vol. B286, Plenum Press, New York, NY, 1992, p 419-422.
33.	J.J. Scholtz, E.N. van Eenige, R.J. Wijngaarden, R. Griessen and D.M. de Leeuw Pressure dependence of T_c and H_c2 of CaLaBaCu₃O₇ Physica C 198 (1992) 231-236
32.	M. Qvarford, K. Heeck, J.G. Lensink, R.J. Wijngaarden and R. Griessen, Microtorquemeter for magnetization measurements on small superconducting samples Rev. Sci. Instr. 63 (1992) 5726-5732
31.	J.J. Scholtz, E.N. van Eenige, R.J. Wijngaarden and R. Griessen Pressure dependence of T_c and H_c2 of YBa₂Cu₄O₈ Phys Rev B45 (1992) 3077-3082
30.	R.J. Wijngaarden and R. Griessen Superconductivity under pressure In "Concise Encyclopedia of magnetic and superconducting materials", J.E. Evetts ed., Pergamon Press plc, Oxford (GB), 1992, p 583-590
29.	R.J. Wijngaarden, J.J. Scholtz, E.N. van Eenige and R. Griessen Can high pressure experiments on high-T_c superconductors put theory under pressure? High Pressure Research 7 (1991) 33-38
28.	J.J. Scholtz, E.N. van Eenige, R.J. Wijngaarden, R. Griessen and D.M. de Leeuw Investigation of the resistive transition of CaLaBaCu₃O₇ in magnetic fields up to 10 Tesla and pressures up to 46 GPa High pressure research, 10 (1992) 637-639
27.	E.N. van Eenige, R. Griessen, R.J. Wijngaarden, J Karpinski, E. Kaldis, S. Rusiekcki and E. Jilek Superconductivity at 108 K in YBa₂Cu₄O₈ at pressures up to 12 GPa High pressure research, 7 (1991) 58-61
26.	E.N. van Eenige, R. Griessen, R.J. Wijngaarden, J Karpinski, E. Kaldis, S. Rusiekcki and E. Jilek Superconductivity at 108 K in YBa₂Cu₄O₈ at pressures up to 12 GPa Physica C 168 (1990) 482-488
25.	R.J. Wijngaarden, E.N. van Eenige, J.J. Scholtz, H.K. Hemmes and R.Griessen High pressure investigation of superconductivity in metal hydrides and cuprate perovskites in "Molecular systems under pressure", R. Pucci and G. Piccitto ed., North Holland, Amsterdam, 1991, p157-180.
24.	R. Griessen, R.J. Wijngaarden and B.Dam Magnetization relaxation and resistive behaviour of high T_c superconductors. Proc. 2nd Int. Symposium on Superconductivity (november 1989), Tsukuba, Japan. Springer Verlag 1990, p 641.
23.	E.N. van Eenige, R.J. Wijngaarden, H. Hemmes, J.J. Scholtz, J.J. de Kleuver and R. Griessen. Electrical properties and T_c of Bi₂CaSr₂Cu₂O₈ at pressures up to 15 GPa Physica C162-164 (1989) 737-738
22.	R. Griessen, R.J. Wijngaarden, E.N. van Eenige and H. Hemmes Conventional and high-T_c superconductors under high pressure High Pressure Research 3 (1990) 99-101
21.	J.J. Scholtz, A.Driessen, R. v.d. Berg, H. v. Groen, H. Verhoog, J.J. de Kleuver, R.J. Wijngaarden and R. Griessen Diamond anvil cell for measurements in high magnetic fields. High pressure research 5 (1990) 874-877
20.	E.N. van Eenige, R.J. Wijngaarden, R. Griessen, Electrical properties and T_c of CaLaBaCu₃O_x at pressures up to 9 GPa High pressure research 3 (1990) 102.
19.	R.J. Wijngaarden, E.N. van Eenige, J.J. Scholtz and R. Griessen High temperature superconductors under pressure: Experimental review and test on the RVB model. High pressure research 3 (1990) 105-108
18.	R.J. Wijngaarden and R. Griessen "High Pressure Studies" in "Studies of High Temperature Superconductors" Vol. 2 p 29-77. Ed. A.V. Narlikar, Nova Science Publishers, New York, 1989.
17.	R.J. Wijngaarden, K. Heeck, R. Griessen, A.A. Menovsky and M.J.V. Menken Critical field of single crystalline YBa₂Cu₃O_7-_d Physica C152 (1988) 523-528
16.	R. Griessen, H. Hemmes, A. Driessen and R.J. Wijngaarden Superconducting Pd-hydrides and -deuterides synthesized under high pressure in a diamond anvil cell Z. f. Phys. Chem. N.F. 163 (1989) 695-707
15.	R.J. Wijngaarden, H.K. Hemmes, E.N. van Eenige, R. Griessen, A.A. Menovsky and M.J.V. Menken Pressure dependence of the T_c of Bi-Ca-Sr-Cu-O up to 80 kbar Physica C152 (1988) 140-144
14.	H. Hemmes, A. Driessen, R. Griessen, R.J. Wijngaarden, J. Caro, S. Radelaar and M. Gupta Pressure dependence of the T_c of superconducting metal-hydrides, measured in a diamond anvil cell Physica C153-155 (1988) 467 -468
13.	R.J. Wijngaarden, K. Heeck, R. Griessen, A.A. Menovsky and M.J.V. Menken Electrical resistivity of YBa₂Cu₃O_7-_d single crystals as a function of temperature and magnetic field. Physica C153-155 (1988) 1329-1330
12.	R. Griessen, A. Driessen, H. Hemmes and R.J. Wijngaarden Volume dependence of high-T_c superconductors Physica C153-155 (1988) 403-404
11.	I.F. Silvera and R.J. Wijngaarden Diamond anvil cell and cryostat for low temperature optical studies Rev. Sci Instrum. 56 (1985) 121-124
10.	A. Lagendijk, R.J. Wijngaarden and I.F. Silvera Roton-phonon mixing in solid hydrogen and deuterium Phys. Rev. B31 (1985) 1352-1358
9.	A. Lagendijk, R.J. Wijngaarden and I.F. Silvera A model for the determination of the crystal field potential in H₂ and D₂ from high pressure experiments Phys. Lett. 99A (1983) 97 -100
8.	R.J. Wijngaarden, V.V. Goldman and I.F. Silvera Pressure dependence of the optical phonon in solid hydrogen and deuterium up to 230 kbar Phys. Rev. B27 (1983) 5084 -5087
7.	R.J. Wijngaarden, A. Lagendijk and I.F. Silvera Pressure dependence of the vibron in solid hydrogen and deuterium up to 600 kbar Phys. Rev. B26 (1982) 4957-4962
6.	J. van Straaten, R.J. Wijngaarden and I.F. Silvera The low temperature equation of state of molecular hydrogen and deuterium to 0.37 Mbar; Implications for metallic hydrogen Phys. Rev. Lett. 48 (1982)97-100
5.	R.J. Wijngaarden, I.F. Silvera and D. Brandt New phase of ortho-deuterium at ultrahigh pressure and frequency dependence of the Q₁(0) vibron Proc. of the 8th AIRAPT Int. High Pressure Conference in Uppsala, Sweden (1981)
4.	I.F. Silvera and R.J. Wijngaarden New low-temperature phase of molecular deuterium at ultrahigh pressure Phys. Rev. Lett. 47 (1981)39-42
3.	R.J. Wijngaarden and I.F. Silvera Raman spectrum of solid orthodeuterium to 150 kbar at 5 K Phys. Rev. Lett. 44 (1980) 456-459
2.	R.J. Wijngaarden and I.F. Silvera Selection of diamonds for raman scattering in diamond anvil cells Proc. of the 7th AIRAPT Int. High Pressure Conference in Le Creusot, France 1979 (Pergamon Press, Oxford 1980) p. 157-159
1.	I.F. Silvera, F. Tommasini and R.J. Wijngaarden Direct measurement of density and rotational temperature in a CO₂ jet beam by raman scattering Progr. In Astron. and Aeron., 51 (1977) 1295