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. 



Kraininer, 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 

 Kavicula (Lineolatae) and Gomphonema, 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. 



Lange-Bertalot, Horst. 1996. Red list of limnic diatoms from 

 Germany. Schr.-R. f. Vegetationskde . , H. 28, pp. 633-677. 

 BfN, Bonn-Bad Godesberg. 



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. 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. 



Plafkin, J.L., M.T. Barbour, K.D. Porter, S.K. Gross, and R.M. 

 Hughes. 1989. Rapid Bioassessment Protocols for Use in 

 Rivers and Streams: Benthic Macroinvertebrates and Fish. 

 EPA 440-4-89-001. 



Prescott, G.W. 1978. How to Know the Freshwater Algae. Third 

 Edition. Wm. C. Brown Company Publishers, Dubuque, Iowa. 



Renfro, H.B., and D.E. Feray. 1972. Geological Highway Map of 



the Northern Rocky Mountain Region. American Association of 

 Petroleum Geologists, Tulsa, Oklahoma. 



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