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Human disturbance and trophic status changes in Crystal Lake, McHenry County, Illinois, USA. Journal of Paleolimnology. 17:369-376.. 1997.
Gradient analysis of diatom assemblages in western Kentucky wetlands. Journal of Phycology. 32:222-232.. 1996.
Using diatoms as indicators of ecological conditions in lotic systems: a regional assessment. Journal of the North American Benthological Society. 15(4):481-495.. 1996.
The effects of hydropsychid colonization on algal response to nutrient enrichment in a small Michigan stream, U.S.A. Freshwater Biology. 33:393-400.. 1995.
Independent and interactive effects of nutrients and grazers on benthic algal community structure. Hydrobiologia. 291:201-209.. 1994.
The effects of nutrients on periphyton. Doctor of Philosophy:98pp... 1993.