J.E. de Steiguer, J. Duberstein, V. Lopes. The Analytic Hierarchy Process as a Means for Integrated Watershed Management. „First Interagency Conference on Research on the Watersheds”, s. 736–740, październik 2003. Benson, Arizona: U.S. Department of Agriculture, Agricultural Research Service. [dostęp 2007-08-20]. (ang.).