Karr, J.R., and D.R. Dudley. 1981. Ecological perspectives on 

 water quality goals. Environmental Management 5:55-69. 



Krammer, K., and H. Lange-Bertalot . 1986. Bacillariophyceae, 

 Part 2, Volume 1: Naviculaceae . In Ettl, H., J. Gerloff, 

 H. Heynig, and D. Mollenhauer (eds.), Freshwater Flora of 

 Middle Europe. Gustav Fischer Publisher, New York. 



Krammer, K., and H. Lange-Bertalot. 1988. Bacillariophyceae, 

 Part 2, Volume 2: Bacillariaceae, Epithemiaceae, 

 Surirellaceae. In Ettl, H., J. Gerloff, H. Heynig, and D. 

 Mollenhauer (eds.). Freshwater Flora of Middle Europe. 

 Gustav Fischer Publisher, New York. 



Krammer, K., and H. Lange-Bertalot. 1991a. Bacillariophyceae, 

 Part 2, Volume 3: Centrales, Fragilariaceae, Eunotiaceae. 

 In Ettl, H., J. Gerloff, H. Heynig, and D. Mollenhauer 

 (eds.). Freshwater Flora of Middle Europe. Gustav Fischer 

 Publisher, Stuttgart. 



Krammer, K., and H. Lange-Bertalot. 1991b. Bacillariophyceae, 

 Part 2, Volume 4: Achnanthaceae, Critical Supplement to 

 Navicula (Lineolatae) and Goruphonema, Complete List of 

 Literature for Volumes 1-4. In Ettl, H., G. Gartner, J. 

 Gerloff, H. Heynig, and D. Mollenhauer (eds.). Freshwater 

 Flora of Middle Europe. Gustav Fischer Publisher, Stuttgart. 



Lange-Bertalot, Horst . 1979. Pollution tolerance of diatoms as 

 a criterion for water quality estimation. Nova Hedwigia 

 64:285-304. 



Lowe, R.L. 1974. Environmental Requirements and Pollution 

 Tolerance of Freshwater Diatoms. EPA-670/4-74 -005 . 



McFarland, B.H., B.H. Hill, and W.T. Willingham. 1997. Abnormal 

 Fragilaria spp . (Bacillariophyceae) in streams impacted by 

 mine drainage. Jour, of Freshwater Ecology 12 (1) : 141-149 . 



Palmer, CM. 1969. A composite rating of algae tolerating 

 organic pollution. J. Phycol . 5:78-82. 



Palmer, CM. 1977. Algae and Water Pollution: An Illustrated 

 Manual on the Identification, Significance, and Control of 

 Algae in Water Supplies and in Polluted Water. 

 EPA-600/9-77-036 . 



Patrick, Ruth, and CW. Reimer. 1966. The Diatoms of The United 

 States Exclusive of Alaska and Hawaii. Volume 1: 

 Fragilariaceae, Eunotiaceae, Achnanthaceae, Naviculaceae. 

 Monograph Number 13, The Academy of Natural Sciences, 

 Philadelphia. 



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