LEWANDOWSKA, Katarzyna. Russell’s Multiplicative Axiom. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 50, p. 152–166, 2012. DOI: 10.59203/zfn.50.109. Disponível em: https://www.zfn.edu.pl/index.php/zfn/article/view/109. Acesso em: 26 nov. 2025.