BAKIĆ, R. On the Theorems of Biernacki. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 79, n. 7, p. 857–861, 2026. DOI: 10.7546/CRABS.2026.07.01. Disponível em: https://www.proceedings.bas.bg/index.php/cr/article/view/1007. Acesso em: 8 aug. 2026.