Wichmann, Søren, Brown, Cecil H. (2011) “Syllable Nuclei of Proto-Mayan Disyllabic Stems”, in Avelino, Heriberto, editor, New Perspectives in Mayan Linguistics...
Brown, Cecil H., Wichmann, Søren (2004 April) “Proto-Mayan syllable nuclei”, in International Journal of American Linguistics, volume 70, number 2, →DOI...
Yrjö Wichmann, Toivo Emil Uotila (1987) Mikko Korhonen, editor, Wotjakischer Wortschatz [Votyak Vocabulary] (Lexica Societatis Fenno-Ugricae; Volume 21)...