FULLEN, M. A. Physical geography and closed loop recycling. Hungarian Geographical Bulletin, [S. l.], v. 64, n. 4, p. 301–306, 2015. DOI: 10.15201/hungeobull.64.4.4. Disponível em: https://ojs.mtak.hu/index.php/hungeobull/article/view/2763. Acesso em: 30 oct. 2026.