LEWANDOWSKA, Katarzyna. Sierpiński’s Philosophy of Mathematics. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 60, p. 53–81, 2016. DOI: 10.59203/zfn.60.132. Disponível em: https://www.zfn.edu.pl/index.php/zfn/article/view/132. Acesso em: 26 nov. 2025.