Treatise on elucidating the process of errancy into saṃsāric involvement and its revesal, Text acquired in Tibet by HRH Prince Peter of Greece and Denmark (1908-1980)., Philosophy text recovered by the ger ston rGod kyi ldem 'phru can, and Catalogue of Tibetan manuscripts and xylographs by Hartmut Buescher and Tarab Tulku. Copenhagen: Curzon – Det Kongelige Bibliotek, 2000. Vol. 1. p. 306