JUNGRAITHMAYR, Herrmann. Emergence and Genesis of Tonality in Chadic: A Contribution to the Linguistic History of Northeast Africa. Folia Orientalia, [S. l.], v. 61, p. 167–192, 2024. DOI: 10.24425/for.2024.152390. Disponível em: https://wydawnictwo.pan.pl/index.php/fo/article/view/748. Acesso em: 14 may. 2026.