1. A. N. Dmitriev, Yu. I. Zhuravlev, and F. P. Krendelev, “On mathematical principles of classifying objects and events,” in Discrete Analysis (Inst. Mat. Sib. Otd. Akad. Nauk SSSR, Novosibirsk, 1966), Vol. 7, pp. 3–11 [in Russian].
2. Yu. I. Zhuravlev and V. V. Nikiforov, Kibernetika, No. 3, 1–11 (1971).
3. M. N. Vaintsvaig, “Algorithm Kora for learning pattern recognition,” in Algorithms for Learning Pattern Recognition (Sovetskoe Radio, Moscow, 1973), pp. 8–12 [in Russian].
4. L. V. Baskakova and Yu. I. Zhuravlev, USSR Comput. Math. Math. Phys. 21 (5), 189–199 (1981).
5. V. V. Ryazanov, Comput. Math. Math. Phys. 47 (10), 1720–1735 (2007).