HELLER, M. What does it mean ‘to exist’ in physics?. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 65, p. 9–22, 2018. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/436. Acesso em: 2 feb. 2023.