Verhagen, Pieter C.

• The Mantra "Oṃ maṇi-padme hūṃ" in an Early Tibetan Grammatical Treatise
  Journal of the International Association of Buddhist Studies JIABS 13/2 (1990)
• Studies in Indo-Tibetan Buddhist Hermeneutics (1). Issues of Interpretation and Translation in the Minor Works of Si-tu Paṇ-chen Chos-kyi-byuṅ-gnas (1699?-1774)
  Journal of the International Association of Buddhist Studies JIABS 24/1 (2001)
• Studies in Indo-Tibetan Buddhist Hermeneutics (5). The mKhas pa rnams 'jug pa'i sgo by Sa skya Paṇḍita Kun dga' rgyal mtshan
  Journal of the International Association of Buddhist Studies JIABS 28/1 (2005)