1. A. I. Gusev and A. A. Rempel’, Structural Phase Transitions in Nonstoichiometric Compounds [in Russian] (Nauka, Moscow, 1988), 308 pp.
2. A. I. Gusev, Physical Chemistry of Nonstoichiometric Refractory Compounds [in Russian] (Nauka, Moscow, 1991), 286 pp.
3. A. I. Gusev, Phys. Status Solidi B 163, 17 (1991).
4. A. I. Gusev and A. A. Rempel’, Dok. Akad. Nauk 332, 717 (1993) [sic].
5. A. I. Gusev and A. A. Rempel’, Phys. Status Solidi A 163, 273 (1997).