Mair, Victor; Skjærvø, Prods Oktor (15 de diciembre de 1991). «CHINESE TURKESTAN ii. In Pre-Islamic Times». Encyclopædia Iranica(en inglés). Nueva York: Encyclopædia Iranica Foundation, Brill. Consultado el 23 de marzo de 2022. «Viśa' Saṃbhava/Li Sheng-tian married a princess of the Chinese governing family at Sha-zhou, the Cao, and both are identified by inscriptions on wall paintings in the caves at Mo-gao/Dun-huang (Zhang and Rong, 1984, p. 42). Their son Viśa' Śūra led a victorious army against the Muslim Īlek-ḵān (tāžik) of Kashgar and reported on the campaign in a letter to the ruler of Sha-zhou, dated 17 February 970.»
