Potapova, Marina, Ionel Ciugulea, and Alison Minerovic. “The Novel Species Navicula Eileeniae (Bacillariophyta, Naviculaceae) and Its Recent Expansion in the Central Appalachian Region of North America”. Plant Ecology and Evolution 152, no. 2 (July 9, 2019): 368-377. Accessed December 8, 2019. https://www.plecevo.eu/index.php/plecevo/article/view/1357.