DJVU PDF Delancey, S. 1989, "Tibetan evidence for Nungish metathesis", in Linguistics of the Tibeto-Burman Area, vol. 12, no. 2, pp. 25-31. cite.
DJVU PDF Delancey, S. 1989, "Contour tones from lost syllables in Central Tibetan", in Linguistics of the Tibeto-Burman Area, vol. 12, no. 2, pp. 33-34. cite.