Douglas R. Weiner, "A Little Corner of Freedom: Russian Nature Protection from Stalin to Gorbachev". University of California Press, 1999. ISBN 0-520-23213-5. On Google Books p. 415 (anglès)
Michael H. Glantz, "Creeping Environmental Problems and Sustainable Development in the Aral Sea...". ISBN 0-521-62086-4. On Google Books p. 174