DJVU PDF Watters, S.A. 2002, "The sounds and tones of five Tibetan languages of the Himalayan region", in Linguistics of the Tibeto-Burman Area, vol. 25, no. 1, pp. 1-65. cite.

DJVU PDF Rischel, J. 2002, "Notes on the pronunciation of an eastern variety of Burmese", in Linguistics of the Tibeto-Burman Area, vol. 25, no. 1, pp. 67-93. cite.

DJVU PDF Lahaussois, A. 2002, "Vowel tenseness and assimilation in Yi: a feature geometry study", in Linguistics of the Tibeto-Burman Area, vol. 25, no. 1, pp. 211-238. cite.