Lupi, Marino, Alessandro Farina, Antonio Pratelli, and Alessandra Gazzarri. “Application of Classification Rules to Italian Ports”. Promet - Traffic&Transportation 26, no. 4 (August 20, 2014): 345–354. Accessed August 27, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2481.