Ancient folk-literature from North-Eastern Tibet (introductions, texts, translations and notes).

von Thomas, F. W.
Abhandlungen der Deutschen Akademie der Wissenschaften zu Berlin 1952,3
Berlin : Akademie-Verlag, 1957.
Umfang/Format: 76 : 203 S., Taf. ; 30 cm.

Antiquities of Indian Tibet

von Francke, August Hermann
Archaeological Survey of India: new imperial series vol. 38 + 50
New Delhi : Asian Educational Services, 1972.