P.G. Kistemaker, M.M. Hanna and A.E. de Vries, Rotation relaxation in mixtures of tetradeuteromethane with helium, neon, argon and xenon, Physica 78, 457-468 (1974)
W.F. van der Weg, W.H. Kool and H.E. Roosendaal, Proton induced X-ray emission compared with proton backscattering for surface analysis, Surf. Sci. 35, 413-414 (1973)
F.W. Byron, C.J. Joachain and M.J. van der Wiel, On the double ionization of helium-like atoms by high-energy electron impact, J. Phys. B: At., Mol. Opt. Phys. 6, 375-377 (1973)
W.F. van der Weg, W.H. Kool, H.E. Roosendaal and F.W. Saris, Silicon surface studies by means of proton backscattering and proton induced x-ray emission, Radiat. Eff. 17, 245-252 (1973)
C.A. van de Runstraat, T.R. Govers, W.B. Maier and R.F. Holland, Extension of the Meinel system of N2+ to high vibrational levels of the A 2Õu state, Chem. Phys. Lett. 18, 549-552 (1973)