1. and Multiplets of Transition-Metal Ions in Crystals (Academic, New York, 1970).
2. The Theory of Transition-Metal Ions (Cambridge University Press, Cambridge, Great Britain, 1961).
3. and Teoriya Opticheskikh Spektrov Perekhodnykh Metallov (Izd. Nauka, Moscow, 1977).
4. and Theoretical Method of the Ligand Field Theory (Science Press, Peking, 1979);
5. Application of lie algebra to ligand-field theory