Maddieson, I. and Ladefoged, P. 1985. "Tense" and "lax" in four minority languages of China. Journal of Phonetics 13. 433-454.
@article{Maddieson-and-Ladefoged-1985, author = {Maddieson, I. and Ladefoged, P.}, journal = {Journal of Phonetics}, pages = {433-454}, title = {"Tense" and "lax" in four minority languages of China}, volume = {13}, year = {1985}, iso_code = {prk}, olac_field = {general_linguistics; typology; phonology; phonetics}, wals_code = {puk} }