'Phags pa yaṅ sñiṅ nor bu'i dag snaṅ: a visionary cycle of Buddhist practice focussing upon Avalokiteśvara in the form Yaṅ-sñiṅ-nor-bu - Dkon-mchog-rin-chen (D. Tsondu Senghe, Bir Tibetan Soc., 1985)