Marianelli, Giampaolo, in Leonardo Piccini. „Surface and Subsurface Drainage Evolution of the Corfino and Soraggio Karst Areas (Tuscany, Italy)“. Acta Carsologica 40, no. 1 (maj 1, 2011). Pridobljeno december 9, 2025. https://ojs.zrc-sazu.si/carsologica/article/view/32.