1. Allan, J.D., Erickson, D.L. and Fay, J.: 1997, ?The influence of catchment land use on stream integrity across multiple spatial scales?, Freshw. Biol. 37, 149?161.
2. Barbour, M.T., Gerritsen, J., Griffith, G.E., Frydenborg, R., Carron, E.C., White, J.S. and Bastian, M.L.: 1996, ?A framework for biological criteria for Florida streams using benthic macroinvertebrates?, J. North Am. Benthol. Soc. 15(2), 185?211.
3. Beaulac, M.N. and Reckhow, K.H.: 1982, ?An examination of land use?nutrient export?, relationships. Water Resour. Bull. 18, 1013?1024.
4. Brandt-Williams, S.: 2002, Emergy of Florida Agriculture, Folio #4, Handbook of Emergy Evaluation: A compendium of data for emergy computation issued in a series of folios, Center for Environmental Policy, Department of Environmental Engineering Sciences, University of Florida, Gainesville, Florida, 40 pp.
5. Brown, M.T.: 1980, ?Energy Basis for Hierarchies in Urban and Regional Landscapes?, Ph.D. Dissertation, Department of Environmental Engineering Sciences, University of Florida, Gainesville, 359 pp.