1. Un método rápido y simple para avalorar la calidad biológica de las aguas corrientes basado en el Hellawell (1978);Alba-Tercedor;Limnetica,1998
2. Considerations for the development of a terrestrial index of ecological integrity;Andreasen;Ecol. Indicators,2001
3. Biological integrity versus biological diversity as policy directives: protecting biotic resources;Angermeier;BioScience,1994
4. A spatial dynamic multistock production model;Ault;Can. J. Fish. Aquat. Sci.,1999
5. Barbour, M.T., Gerritsen, J., Snyder, B.D., Stribling, J.B., 1999. Rapid Bioassessment Protocols for Use in Streams and Wadeable Rivers: Periphyton, Benthic Macroinvertebrates and Fish, 2nd ed. U.S. Environmental Protection Agency (EPA), Office of Water, Washington, DC.