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2. N. N. Krasovskii and A. I. Subbotin, Positional Differential Games (Nauka, Moscow, 1974; Springer-Verlag, Berlin, 1988).
3. A. I. Subbotin and A. G. Chentsov, Guarantee Optimization in Control Problems (Nauka, Moscow, 1981) [in Russian].
4. A. A. Chikrii, Conflict Controlled Processes (Naukova Dumka, Kiev, 1992; Kluwer Acad., Boston, 1997).
5. N. L. Grigorenko, Mathematical Methods of Controlling Several Dynamic Processes (Izd. Mosk. Gos. Univ., Moscow, 1990) [in Russian].