Meditation on Vajrabhairava : the procedures for doing the serviceable retreat of the glorious solitary hero Vajrabhairava, with the sadhana "victory over evil"
by Kyabje Phabongkha Dechen Nyingpo ; compiled and translated [from Tibetan] by Sharpa Tulku with Richard Guard
Library of Tibetan Works and Archives, c1990
PRIORITY 3
"This text in restricted to those who have received the initiation and maintain the commitments of this [Buddhist] deity."