Bigalyev, A.B., Zhanburshin, E.T., Bigalyeva, R.K., Ryskulova, A.R., Kenzhin, Z.D. and Rakhmanova, Z. 2012. Caspian Sea is Energy and Vital Source: Human Being, Sustainable Development of Ecosystem’s and Society. International Journal of Biology and Chemistry. 3 (Jun. 2012), 39–42.