1. in: Point Defects in Solids, Ed. and , Plenum Press, New York 1972 (Chap. 1).
2. Theory of Defects in Solids, Oxford University Press, Oxford 1975.
3. and , Perturbations électroniques et vibrationnelles localisées dans les solides ioniques, Masson, Paris 1974.
4. Electronic structure of the self-trapped exciton in alkali fluorides and chlorides
5. and , Internat. Symp. Color Centers in Ionic Crystals, Sendai 1974 (Abstr. No. 30).