Full reference OpenMind biblio ref
Gelblum, Tuvia, and Shlomo Piines. 1977. “Al-Bīrūni’s Arabic Version of Patañjali’s Yogasūtra: A Translation of the Second Chapter and a Comparison With Related Texts”. Bulletin of the School of Oriental and African Studies 40 (3): 522-49.
{ Tuvia Gelblum, Shlomo Piines, 1977 #11241 }