Porczyńska, Barbara2024-01-312024-01-312021-12Warstwy Nr 4 (2021), s. 1672544-4824https://repozytorium.ur.edu.pl/handle/item/9784polAttribution-NonCommercial-NoDerivs 3.0 Polandhttp://creativecommons.org/licenses/by-nc-nd/3.0/pl/article