«Upgrading Geographic Information Systems to Spatial Decision Support Systems», Math. Comput. For. Nat. Res. Sci., vol. 3, fasc. 1, pp. Pages: 36–41 (6), feb. 2011, Consultato: ott. 30, 2026. Disponibile su: https://tmp.mcfns.com/index.php/Journal/article/view/MCFNS.3-36