1. Is nitrogen deposition altering the nitrogen status of northeastern forests?;Aber;BioScience,2003
2. Patterns of understory diversity in mixed coniferous forests of southern California impacted by air pollution;Allen;The Scientific World Journal,2007
3. Landscape restoration in southern California forblands: response of abandoned farmland to invasive annual grass control;Allen;Israel Journal of Plant Sciences,2005
4. Allen, E.B., Padgett, P.E., Bytnerowicz, A., Minnich, R., 1998. Nitrogen deposition effects on coastal sage vegetation of southern California. Proceedings of the International Symposium on Air Pollution and Climate Change Effects on Forest Ecosystems, Riverside, California, February 5–9, 1996. USDA Forest Service, Pacific Southwest Research Station. PSW-GTR-166, pp. 131–140. Available from: http://www.fs.fed.us/psw/publications/gtrs.shtml.
5. Impacts of atmospheric nitrogen deposition on vegetation and soils in Joshua Tree National Park;Allen,2009