1. R. A. Aliev, D. E. Gul'ko, and M. M. Shakhnazarov, Izv. Akad. Nauk SSSR, Tekh. Kibern., No. 5, 118–128 (1988).
2. É. K. Amirova, V. A. Efimov, A. P. Kuzhukin, et al., Second All-Union Conference on Artificial Intelligence: Abstracts of Papers [in Russian], Vol. 3, Minsk (1990), pp. 156–157.
3. É. K. Amirova, N. V. Lupina, A. N. Slepchenko, et al., All-Union Conference on Hybrid Expert Systems: Abstracts of Papers [in Russian], Riga (1990), pp. 83–86.
4. V. A. Efimov et al., Prosthetics [in Russian], Moscow, No. 89, 23–32 (1988).
5. A. P. Kuzhekin (ed.), Design of Prosthetic-Orthopedic Articles [in Russian], Moscow (1984).