Erokhov S.N. et al. The most substantial results of geese autumn migration monitoring in Kostanai Region, North-Western Kazakhstan. Bulletin of the working group on Geese and Swans of Eastern Europe and Northern Asia, “Kazarka (Brant-goose)”, #6, Moscow, 2006, P. 121-158. (in Russian)
BirdLife International (2021) Important Bird Areas factsheet: Sulukol Lake. Downloaded from
http://www.birdlife.org on 20/09/2021.