• Tôh. nos. 2944, 3646. Possible this is shortened form of Padmavajra (author of Tôh. no. 2943), Padmasambhava or another such name.
• Chimpa, THBI, p. 230 n.
• Bu ston's History (1989), Catalogue Section, p. 328.5: slob dpon padmas mdzad pa'i shes rab kyi spring yig 'gos kyi 'gyur.
• Blue Annals, pp. 43, 95, 106, 149, 156, 203, 491, 805, 821.

Bibliography:

• Dam tshig bsrung ba. Tôh. no. 2944. Dergé Tanjur, vol. PU, folio 24r.3-24v.5.
• Yig brgya'i cho ga. Tôh. no. 3646. Dergé Tanjur, vol. MU, folios 259r.6-260v.1.