KRAWCZYK, K. A.; PIĘTA, B. The Forgotten Jerzy Łoś’s Contribution to Philosophical Logic. Logics with Realization Operator R. Ruch Filozoficzny, [S. l.], v. 76, n. 2, p. 179–187, 2020. DOI: 10.12775/RF.2020.029. Disponível em: https://apcz.umk.pl/RF/article/view/RF.2020.029. Acesso em: 17 sie. 2024.