Wikramanayake Eric, Dinerstein Eric, Loucks Colby, Olson David, Morrison John, Lamoreux John, McKnight Meghan, Hedao Prashant
Conservation Science Program, World Wildlife Fund - United States, 1250 24th Street NW, Washington, D.C. 20037, U.S.A.
Environmental Systems Research Institute, Inc., Redlands, CA 92373, U.S.A.
Conserv Biol. 2002 Feb;16(1):238-243. doi: 10.1046/j.1523-1739.2002.01403.x.