GROCHOWSKI, P. Tracing Polish folk epic. Literatura Ludowa. Journal of Folklore and Popular Culture, [S. l.], v. 64, n. 4-5, p. 65–79, 2021. DOI: 10.12775/LL.4-5.2020.006. Disponível em: https://apcz.umk.pl/LL/article/view/LL.4-5.2020.006. Acesso em: 4 feb. 2023.