FREDENHAGEN, K. Independent quantum systems and the associativity of the product of quantum observables. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), [S. l.], n. 66, p. 61–72, 2019. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/465. Acesso em: 28 apr. 2024.