Liangshan Yi (also known as Nosu, spoken in Sichuan Province, China) has many phonetically-interesting syllables. In this paper an articulatory description of the full range of distinctive syllables of this language is given and it is shown that the standard phonemicization of these is reasonable.
"Proceeding from Syllable Inventory to Phonemic Inventory in the Analysis of Liangshan Yi,"
Work Papers of the Summer Institute of Linguistics, University of North Dakota Session: Vol. 41
, Article 1.
Available at: https://commons.und.edu/sil-work-papers/vol41/iss1/1