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)
D. Onderdelinden, F.W. Saris and P.K. Rol, The validity of the transparency model for single crystal sputtering, Nucl. Instrum. Methods 38, 269-270 (1965)
A.E. de Vries and P.K. Rol, Theoretical and experimental determination of an error in the pressure indication of a McLeod manometer, Vacuum 15, 135-139 (1965)