Vowel Harmony and Subsequentiality Jeffrey Heinz author Regine Lai author 2013-08 text Proceedings of the 13th Meeting on the Mathematics of Language (MoL 13) András Kornai editor Marco Kuhlmann editor Association for Computational Linguistics Sofia, Bulgaria conference publication heinz-lai-2013-vowel https://aclanthology.org/W13-3006/ 2013-08 52 63