M.C. Moutinho, J.A. Aten and J.H. Los, Temperature dependence of the total cross section for chemi-ionization in alkali-halogen collisions, Physica 53, 471-492 (1971)
A.P.M. Baede, W.F. Jungmann and J.H. Los, Production of neutral alkali dimers by sputtering; total elastic cross sections of potassium dimers on the noble gases, Physica 54, 459-467 (1971)
T.F.M. Bonsen and L. Vriens, Angular distribution of electrons ejected by charged particles I. Ionization of He and H2 by protons, Physica 47, 307-319 (1970)
J.N. Smith, J. Wolleswinkel and J.H. Los, Residence time measurements for the surface ionization of K on W: the effects of surface contaminants, Surf. Sci. 22, 411-425 (1970)
J.J.P. Elich and H.E. Roosendaal, Anisotropy in ejection patterns due to generation of focusing collisions by channeled particles, Phys. Lett. 33A, 235-236 (1970)