SZTUMSKI, Wiesław. Social Sozophilosophy and the Care for Sutainability of Some Areas of the Social Reality. Problemy Ekorozwoju, [S. l.], v. 10, n. 2, p. 15–29, 2015. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4905. Acesso em: 22 jul. 2024.