WINNICKI, Tomasz. Communiques of the State Environmental Council of Poland: Work Plan 2011 9th Plenary Meeting of PROS. Problemy Ekorozwoju , [S. l.], v. 6, n. 2, p. 169–170, 2011. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4796. Acesso em: 30 jan. 2026.