ČOP, B. Zur mediopassiven 2. Und 3. Person dualis im indogermanischen. Linguistica, [S. l.], v. 12, n. 1, p. 41–56, 1972. DOI: 10.4312/linguistica.12.1.41-56. Disponível em: https://journals.uni-lj.si/linguistica/article/view/5305. Acesso em: 29 may. 2023.