1. Babaev, A.G. (1997) Ecological, Socialand Economic Problems of the Turkmen Caspian Zone, in M.H. Glantz and I.S. Zonn (eds.), Scientific, Environmental and Political Issues in Circum-CaspianRegion, Kluwer Academic Publishers, Dordrecht, pp.97–104.
2. Bagrov, N.A. (1961)On the variations in levels of closed lakes, Meteorologia i Gidrologia
6, 41–48 (in Russian).
3. Budyko, M.I. and Yudin, M.I. (1960) On variations in the levels of non-terminal lakes, Meteorologia i Gidrologia
8,15–19 (in Russian).
4. Frolov, A.V. (1985)Dynamic-Stochastical Models of the Long-Term Variations in the Non-Terminal LakeLevels, Nauka, Moscow (in Russian).
5. Frolov, A.V. (1989)Effects of autocorrelation in river inflow and effective evaporation on the regime of lake level variations, Meteorologia i Gidrologia, 4, 94–101 (in Russian).