Essengabylov, I., S. Kasenov, E. Tokpanov, N. Kazhieva, and M. Dzhetimov. “Investigations of Bottom Sediment Formation of the Ili River”. Oecologia Montana, Vol. 22, no. 2, Dec. 2013, pp. 34-37, https://om.vuvb.uniza.sk/index.php/OM/article/view/252.