F. van der Valk and A.E. de Vries, Einfluß einer dritten Komponente auf die Thermodiffusion in binären Isotopengemischen, Kernenergie 5, 280-284 (1962)
H.N.A. Priem, N.A.I.M. Boelrijk and A.J.H. Boerboom, Lead isotope studies of the lead-zinc deposits of southern Limburg, The Netherlands, Geol. Mijnb. 41, 430-437 (1962)
J. van Eck, F.J. de Heer and J. Kistemaker, Excitation processes in helium and polarization of the resulting light induced by proton impact (5-35 keV), Physica 28, 1184-1190 (1962)
