1. Zaytseva, L.M. (1997) Regional management system, National Academy of Sciences of Ukraine, Donetsk.
2. Gritsan, N.P., Babiy, A.P., Shpak, N.V. et al. (1998) Ecological fundamentals of nature management, National Academy of Sciences of Ukraine, Dnepropetrovsk.
3. National report on environmental state in Ukraine for 1995 (1997) Rayevskiy Press, Kiev.