1. V. D. Mazurov, ?Committees of systems of inequalities and the recognition problem,? Kibernetika, No. 3 (1971).
2. Yu. I. Zhuravlev, ?Nonparametric pattern-recognition problems,? Kibernetika, No. 6 (1976).
3. V. B. Alekseev, ?Number of monotone k-valued functions,? in: Problems of Cybernetics [in Russian], No. 28, Nauka, Moscow (1974).
4. V. K. Korobkov, ?Monotone logic-algebra functions,? in: Problems of Cybernetics [in Russian], No. 13, Nauka, Moscow (1965).
5. M. Hall, Combinatorial Theory, Wiley (1975).