GATHERCOLE, Geoffrey. Tonogenesis and the Kickapoo Tonal System. Kansas Working Papers in Linguistics, [S. l.], v. 5, p. 25–38, 1980. DOI: 10.17161/KWPL.1808.543. Disponível em: https://journals.ku.edu/kwpl/article/view/17289. Acesso em: 17 feb. 2025.