1. Bastian, R.K. and Benforado, J. 1988. Water quality functions of wetlands: natural and managed systems.In The ecology and management of wetlands. Vol. I: Ecology of wetlands, pp. 87–97. Edited by D.D. Hookel al. Timber Press, Portland, OR.
2. Chesapeake Bay Program. 1994. Chesapeake Bay basin toxics loading and release inventory — Basinwide toxics reductions strategy commitment report. CBP/TRS 102/94.
3. Conover, W.J. and Iman, R.L. 1981. Rank transformations as a bridge between parametric and nonparametric statistics. The American Statistician 35: 124–133.
4. Correll, D.L., Jordan, T.E. and Weller, D.E. 1992. Nutrient flux in a landscape: Effects of coastal land use and terrestrial community mosaic on nutrient transport to coastal waters. Estuaries 4: 431–442.
5. Detenbeck, N.E., Johnston, C.A. and Niemi, G.J. 1993. Wetland effects on lake water quality in the Minneapolis/St. Paul metroplitan area. Landscape Ecology 8: 39–61.