Gumilyov, L. The Shattered Silence (961–1100). Searches for an Imaginary Kingdom: The trefoil of the Bird's Eye View. [2022-12-21]. (原始内容存档于2022-12-21).
Bacot J. "Reconnaissance en Haute Asie Seplentrionale par cinq envoyes ouigours au VIII siecle" // JA, Vol. 254, No 2,. 1956, p.147, in Gumilev L.N., "Ancient Türks", Moscow, 'Science', 1967, Ch.27 http://gumilevica.kulichki.net/OT/ot27.htm (页面存档备份,存于互联网档案馆) (In Russian)
Gumilev L.N. Ancient Turks, Moscow, 'Science', 1967, Ch. 27 (页面存档备份,存于互联网档案馆) (in Russian)
Gumilyov, L. (2009) Searches for an Imaginary Kingdom: The Legend of the Kingdom of Prester Johnch. 14 (页面存档备份,存于互联网档案馆) (in English; translated by R.E.F. Smith)
Gumilyov, L. The Shattered Silence (961–1100). Searches for an Imaginary Kingdom: The trefoil of the Bird's Eye View. [2022-12-21]. (原始内容存档于2022-12-21).
Bacot J. "Reconnaissance en Haute Asie Seplentrionale par cinq envoyes ouigours au VIII siecle" // JA, Vol. 254, No 2,. 1956, p.147, in Gumilev L.N., "Ancient Türks", Moscow, 'Science', 1967, Ch.27 http://gumilevica.kulichki.net/OT/ot27.htm (页面存档备份,存于互联网档案馆) (In Russian)
Gumilev L.N. Ancient Turks, Moscow, 'Science', 1967, Ch. 27 (页面存档备份,存于互联网档案馆) (in Russian)
Gumilyov, L. (2009) Searches for an Imaginary Kingdom: The Legend of the Kingdom of Prester Johnch. 14 (页面存档备份,存于互联网档案馆) (in English; translated by R.E.F. Smith)
worldcat.org
Barthold, Wilhelm. Zwölf Vorlesungen über die Geschichte der Türken Mittelasiens [Twelve Lectures on the History of the Turks of Central Asia]. Deutsche Gesellschaft für Islamkunde. Berlin: Arthur Collignon. 1935: 37. OCLC 2221089.