Dematteis, Antonio, Riccardo Torri, Bertrand Chereau, and Michel Ducrot. “Groundwater in the Perthus Tunnel: Feedback After Excavation”. Acque Sotterranee - Italian Journal of Groundwater 10, no. 2 (June 24, 2021): 65–71. Accessed November 21, 2024. https://www.acquesotterranee.net/acque/article/view/518.