^Haarh, Erik: Extract from "The Yar Lun Dynasty", in: The History of Tibet, ed. Alex McKay, Vol. 1, London 2003, p. 147; Richardson, Hugh: The Origin of the Tibetan Kingdom, in: The History of Tibet, ed. Alex McKay, Vol. 1, London 2003, p. 159 (and list of kings p. 166-167).