Student contest. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 40, p. 129–130, 2007. DOI: 10.59203/zfn.40.288. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/288. Acesso em: 21 dec. 2025.