Brunnholzl When Clouds Part The Uttara-tantra (PDF)

The complete title is: When Clouds Part: .The Uttaratantra and Its Meditative Tradition as a Bridge between Sutra and Tantra 

 "One may well wonder why there needs to be another book about buddha nature and the Uttaratantra. The reasons for this volume are to present hither to untranslated materials on this text (mainly its Indian commentaries and early Tibetan materials on it) and to shed new light on what is called “the meditative tradition of the Maitreya texts” as well as the Uttaratantras connections with Mahamudra and Shentong 

The book also contains translations of Sajjanas (eleventh century) Mahayanottaratantropadesa (a versified synopsis of the Uttaratantra) and two never-translated Tibetan commentaries,

 The introduction provides a survey of the main sutra sources of the tathagatagarbha teachings and the great variety of explanations of the meaning of tathagatagarbha in India and Tibet. It also investigates the history and transmission of the five works of Maitreya from India to Tibet as well as the relationships between the Uttaratantra and Yogacara, Shentong, and Mahamudra