1. L. S. Pontryagin, Selected Scientific Works [in Russian], Vol. 2, Nauka, Moscow (1988).
2. N. N. Krasovskii, Game Problems on the Encounter of Motions [in Russian], Nauka, Moscow (1970).
3. B. N. Pschenitchny, “ε-strategies in differential games,” in: Topics in Differential Games, North Holland Publ. Co, New York–London–Amsterdam (1973), pp. 45–99.
4. R. Isaacs, Differential Games, John Wiley, New York (1965).
5. A. I. Subbotin and A. G. Chentsov, Guarantee Optimization in Control Problems [in Russian], Nauka, Moscow (1981).