Jarosz, Aleksandra. “Innovations, Distribution Gaps and Mirror Images: The Reflexes of Proto-Ryukyuan Close Vowels in a Post-Nasal Position”. Yearbook of the Poznan Linguistic Meeting 4 (December 1, 2018): 75–104. Accessed March 18, 2026. https://pressto.amu.edu.pl/index.php/yplm/article/view/yplm-2018-0004.