KOSTECKA, Joanna. Decade of Education for Sustainable Development – Vision, Aim and Strategy. Problemy Ekorozwoju, [S. l.], v. 4, n. 2, p. 101–106, 2009. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4697. Acesso em: 22 jul. 2024.