1. The lattice dynamics of an anharmonic crystal
2. and , Infrared Absorption and Raman Scattering in Pure and Perturbed Crystals— Encyclopedia, Vol. XXV/2d. Springer, Berlin (1968).
3. and , in Sovryemyennyye Problyemy Statistichyeskoj Fiziki. Trudy Vsyesoyuznoj Konfyeryentsii, L’vov, 3-5 Fyevralya 1987, Vol. 2, p. 261. Naukova Dumka, Kiev (1989).
4. Preprint ITP-81-88R, Kiev (1981).
5. Diagram technique for Hubbard operators