HELLER, Michał. Podręcznik minimum. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 41, p. 166–168, 2007. DOI: 10.59203/zfn.41.276. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/276. Acesso em: 23 jan. 2026.