1. Elektronentheorie der Metalle. Berlin: Springer 1936; reprinted, Ann Arbor 1943, republished, by Springer 1969 [in German].
2. Theory of Dielectrics. Oxford: Clarendon Press 1949; 2nd Ed. 1958. Translations in Russian and Japanese.
3. Photoelectric effect in metals: Ann. Physik 7, 103–128 (1930) [in German].
4. Shot effect in quantum mechanics: Z. Physik 71, 715–719 (1931) [in German].
5. Theory of secondary emission from metals: Ann. Physik 13, 229–248 (1932) [in German].