LEWANDOWSKA, K. The axiom of choice in the papers of Wacław Sierpiński. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 52, p. 9–33, 2013. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/71. Acesso em: 29 jan. 2023.