Wichmann, Søren, Brown, Cecil H. (2011) “Syllable Nuclei of Proto-Mayan Disyllabic Stems”, in Avelino, Heriberto, editor, New Perspectives in Mayan Linguistics...
Yrjö Wichmann, Toivo Emil Uotila (1987) Mikko Korhonen, editor, Wotjakischer Wortschatz [Votyak Vocabulary] (Lexica Societatis Fenno-Ugricae; Volume 21)...
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