KOTUŁA, Sebastian D. Prace Paula Otleta a World Wide Web. Biblioteka, [S. l.], n. 17(26), p. 153–167, 2013. DOI: 10.14746/b.2013.17.8. Disponível em: https://pressto.amu.edu.pl/index.php/b/article/view/15. Acesso em: 21 lis. 2024.