Dementyev P.G. (1952) Birds of Turkmenistan, Ashgabat, Proceedings of the Turkmen Academy of Sciences TSSR, Volume 1. 546p.(in russian).
Rustamov A.K. (1954) Birds of Kara Kum desert, Ashgabat, Proceedings of the Turkmen Academy of Sciences TSSR, 342 p. (in russian).
Rustamov A.K. 1958. Birds of Turkmenistan, Ashgabat, Proceedings of the Turkmen Academy of Sciences TSSR, Volume 2. 333p. (in russian).
Shubenkin V. P., Antipov S.M. (1990) Ecology and protection of birds of prey of deserts of Southern Ustyurt and the Sarykamysh hollow. Nature protection of Turkmenistan. Issue 8. Ashgabat. p.115-125. (in russian).
