Whigham, Dennis F., Jordan, Thomas E., Pepin, A. L., Pittek, M. A., Hofmockel, K. H., and Gerber, N. 1999.
Nutrient retention and vegetation dynamics in restored freshwater wetlands on the Maryland coastal plan. Final report. U.S. EPA (CB993043-04). Edgewater, MD: Smithsonian Environmental Research Center.