二硫化铌Status Solidi A. 1987, 99: 65–72. doi:10.1002/pssa.2210990108. Yan, Rusen; Khalsa, Guru; Schaefer, Brian T.; Jarjour, Alexander; Rouvimov, Sergei; Nowack
卡利斯坦运动 Jain, S. (1994) Annals of the Bhandarkar Oriental Research Institute, Vol. 74, p. 217: The word "Khalsa" (from Persian Khalis) itself means "pure".