1. and , Radiation Damage in Solids, Princeton Univ. Press, 1961, and references therein.
2. Bestrahlungseffekte in Festkörpern, Teubner, Stuttgart (in press);
3. and , Displacement of Atoms During Irradiation, in: Solid State Physics, Vol. 2, Academic Press, New York 1956 (p. 305);
4. Tables of Higher Functions, Teubner, Stuttgart 1960 (p. 13).