MICHNOWSKI, Lesław. Eco-Humanism and Popular System Dynamics as Preconditions for Sustainable Development. Problemy Ekorozwoju, [S. l.], v. 3, n. 2, p. 31–50, 2008. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4660. Acesso em: 22 jul. 2024.