RUGGIERO, A. The Metropolitan Areas In Sicily. Limits And Contradictions Of Istitutional Rescaling Processes. Bollettino della Società Geografica Italiana, [S. l.], p. 585–599, 2011. DOI: 10.36253/bsgi-7355. Disponível em: https://bsgi.it/index.php/bsgi/article/view/7355. Acesso em: 15 oct. 2026.