1. L. S. Pontryagin, Selected Scientific Works (Nauka, Moscow, 1988), Vol. 2 [in Russian].
2. B. N. Pshenichnyi and V. V. Ostapenko, Differential Games (Naukova Dumka, Kiev, 1992) [in Russian].
3. N. N. Krasovskii, Game Problems of Encounter of Motions (Nauka, Moscow, 1970) [in Russian].
4. N. N. Krasovskii and A. I. Subbotin, Positional Differential Games (Nauka, Moscow, 1974); English transl.: Game-Theoretical Control Problems (Springer, New York, 1988).
5. R. Isaacs, Differential Games (J. Wiley and Sons, New York, 1965).