POLAK, Paweł. Sprawozdanie za rok 2006. Philosophical Problems in Science, [S. l.], n. 41, p. 144–146, 2007. DOI: 10.59203/zfn.41.271. Disponível em: https://zfn.edu.pl/index.php/zfn/article/view/271. Acesso em: 8 dec. 2025.