1. Urban Wastewater Management in the United States: Past, Present, and Future
2. D. Hammer, Constructed Wetlands for Wastewater Treatment: Municipal, Industrial, and Agricultural Lewis Publishers, CRC Press, Boca Raton, FL, 1989; J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed., vol. 2, Clarendon, Oxford, 1892, pp. 68–73.
3. Role of plant uptake on nitrogen removal in constructed wetlands located in the tropics