ŚWIDRAK, Marek. How young can a monument be? The normative premises of stating the "validity" of immovable monuments. Protection of Cultural Heritage, [S. l.], n. 3, p. 87–94, 2017. DOI: 10.24358/ODK_2017_03_06. Disponível em: https://ph.pollub.pl/index.php/odk/article/view/833. Acesso em: 3 may. 2024.