PROULX, Paul. Proto-algic V: Doublets and their Implications. Kansas Working Papers in Linguistics, [S. l.], v. 19, p. 115–182, 1994. DOI: 10.17161/KWPL.1808.321. Disponível em: https://journals.ku.edu/kwpl/article/view/17222. Acesso em: 10 apr. 2025.