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Patrick L. Brezonik | P. Brezonik | R. A. Osgood | Charles R. Kratzer | Richard A. Osgood | C. Kratzer
[1] R. Carlson. A trophic state index for lakes1 , 1977 .
[2] R. A. Osgood. Using Differences Among Carlson's Trophic State Index Values in Regional Water Quality Assessment , 1982 .
[3] Patrick L. Brezonik,et al. A CARLSON-TYPE TROPHIC STATE INDEX FOR NITROGEN IN FLORIDA LAKES , 1981 .