GAWOR, Leszek. Philosophy of Sustainable Development – Preliminaries. Problemy Ekorozwoju / Problems of Sustainable Development, [S. l.], v. 5, n. 2, p. 69–76, 2010. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4747. Acesso em: 14 dec. 2025.