1. L. V. Dyadyuchenko, In the Caves of Kyrgyzstan (Mentep, Frunze, 1970) [in Russian].
2. A. G. Filippov and V. V. Tsibanov, in Speleology and Spelestology (Naberezhnocheln. Inst. Socialnoped. Tekhnol. Resursov, Naberezhnye Chelny, 2012), p. 43.
3. G. M. Maksimov, in ROSI Spelestology Yearbook (Russ. O-vo Spelestol. Issled., Moscow, 1999), p. 81.
4. A. G. Filippov and G. N. Mavlyanov, Peshchery, No. 36, 122 (2013).
5. A. F. Sosedko, Sots. Nauka Tekh. (Tashkent), No. 12, 17 (1935).