P.J. van Deenen, T. Matitti and A. Vermeer, A transistor amplifier for registration of the low current part of a Langmuir probe characteristic, J. Sci. Instrum. 42, (1965)
C. Snoek, R. Geballe, W.F. van der Weg, P.K. Rol and D.J. Bierman, Structure in the electron energy spectrum from multi-keV Ar+-Au and Ar+-Cu collisions, Physica 31, 1553-1556 (1965)
B.L. Schram, F.J. de Heer, M.J. van der Wiel and J. Kistemaker, Ionization cross sections for electrons (0.6-20 keV) in noble and diatomic gases, Physica 31, 94-112 (1965)
A.E. de Vries and F.S. Klein, Ultraviolet-induced isotope exchanges in gaseous mixtures of HCl and D2 and of DCl and H2, J. Chem. Phys. 41, 3428-3435 (1964)