PAWŁOWSKI, Artur. Sustainable Energy as a Sine Qua Non Condition for the Achievement of Sustainable Development. Problemy Ekorozwoju / Problems of Sustainable Development, [S. l.], v. 4, n. 2, p. 9–12, 2009. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4687. Acesso em: 14 dec. 2025.