“Since ‘Groundwater and Surface Water-A Single Resource’: Some U.S. Geological Survey Advances in Modeling Groundwater Surface-Water Interactions”. Acque Sotterranee - Italian Journal of Groundwater 1, no. 1 (June 30, 2012). Accessed June 9, 2025. https://www.acquesotterranee.net/acque/article/view/001-12-0001.