Bibliography
“Long-Term Mammalian Herbivory And Nutrient Addition Alter Lichen Community Structure In Alaskan Dry Heath Tundra”. Arctic, Antarctic And Alpine Research 40, no. 1. Arctic, Antarctic And Alpine Research (2008): 65-73. doi:10.1657/1523-0430(06-087)%5BGough%5D2.0.Co;2.
.