WINNICKI, Tomasz. Communiques on Activities of the State Environmental Council of Poland. Problemy Ekorozwoju , [S. l.], v. 5, n. 1, p. 157–166, 2010. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4777. Acesso em: 16 feb. 2026.