Thugs rje chen po Bcu źig źal gyi bla ma brgyud paʼi rnam thar nor buʼi phreṅ ba : a collection of biographies of the masters in the transmission lineage of the avalokiteśvara in the Eleven-Faced Form practice with related khrid material ; Gso sbyoṅ raṅ gis len paʼi cho gaʼi rnam bśad dpag bsam gyi dgaʼ tshal : a study on the gos sbyoṅ practice - ʼOd-dpag-rdo-rje (Damchoe Sangpo, 1982)