1. V. G. Il’ichev, D. B. Rokhlin, and G. A. Ugol’nitskii, Izv. Ross. Akad. Nauk, Ser. Teor. Sistemy Upravl., No. 4, 104 (2000).
2. V. G. Il’ichev, Zh. Obshch. Biol. 64, 337 (2003).
3. R. Bellman, Dynamic Proogramming (Inostran. Literat., Moscow, 1960).
4. Hydrological Regime of Lakes and Water Reservoirs of the USSR: The Tsimlyanskoe, Watershed, and Manycheskie Water Reservoirs, Ed. by V. A. Znamenskii and V. M. Geitenko (Gidrometeoizdat, Leningrad, 1977) [in Russian].