MAYER, T.; ROHRDANTZ, C.; BUTT, M.; PLANK, F.; KEIM, D. A. Visualizing Vowel Harmony. Linguistic Issues in Language Technology, [S. l.], v. 4, 2010. DOI: 10.33011/lilt.v4i.1223. Disponível em: https://journals.colorado.edu/index.php/lilt/article/view/1223. Acesso em: 6 may. 2024.