1. Departures from the ideal chemical and physical structure of a semiconductor considered in relation to chemical reactivity
2. Symposium on Local Properties of Perfect Crystals, Geneva 1962.
3. : Semiconductor Surface Physics, University of Pennsylvania Press, Philadelphia 1957, S. 23;
4. Semiconductor Surfaces. Pergamon Press, Oxford 1960, S. 1.
5. Structure and Adsorption Characteristics of Clean Surfaces of Germanium and Silicon