Moulton, Carol A, and Laura  Gough. ?Effects Of Soil Nutrient Availability On The Role Of Sexual Reproduction In An Alaskan Tundra Plant Community?. Arctic, Antarctic And Alpine Research 43, no. 4. Arctic, Antarctic And Alpine Research (2011): 612-620. doi:10.1657/1938-4246-43.4.612.

Moulton, Carol A. ?How Soil Nutrient Availability Affects Plant Sexual Reproduction And Seedling Recruitment In Alaskan Dry Heath Tundra: Implications For Response To Climate Change?. University of Texas at Arlington, 2009. http://hdl.handle.net/10106/1681.