1. Whole lake responses to low level copper sulfate treatment
2. G. P. Fitzgerald , 1971 . Algicides. University of Wisconsin Water Resources Research Center, Eutrophication Information Program, Literature No. 2, Madison, Wisconsin, 50 pp.
3. Regulation of copper availability to phytoplankton by macromolecules in lake water
4. M. J. Hanson , 1981 . The Use of Copper Sulfate for Algal Control; Copper Treatments in the Fairmont Lakes 1921-1979. Fairmont Lakes Commission Report No. 5, Fairmont, Minnesota.