HELLER, M.; MĄCZKA, J. Ideals and ideats. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 72, p. 203–212, 2022. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/576. Acesso em: 9 dec. 2022.