Karakis, Snejana, Barry Cameron, and William Kean. “Geology and Wine 14. Terroir of Historic Wollersheim Winery, Lake Wisconsin American Viticultural Area”. Geoscience Canada 43, no. 4 (December 15, 2016): 265–282. Accessed March 28, 2024. https://journals.lib.unb.ca/index.php/GC/article/view/25117.