MARCONI, M. The Geography Of Friedrich Ratzel Between Determinism And Neoidealism. Bollettino della Società Geografica Italiana, [S. l.], p. 217–237, 2013. DOI: 10.36253/bsgi-7425. Disponível em: https://www.bsgi.it/index.php/bsgi/article/view/7425. Acesso em: 14 oct. 2026.