ČOP, Bojan. Beiträge zur indogermanischen wortforschung VIII*. Linguistica, Ljubljana, SI, v. 10, n. 1, p. 89–106, 1970. DOI: 10.4312/linguistica.10.1.89-106. Disponível em: https://journals.uni-lj.si/linguistica/article/view/5262.. Acesso em: 16 jul. 2024.