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Filters: Type is Journal Article and Author is John Helfrich [Clear All Filters]

1988

Hobbie, John E, and John Helfrich. “The Effect Of Grazing By Microprotozoans On Production Of Bacteria”. Archives Of Hydrobiology 31. Archives Of Hydrobiology (1988): 281-288.

1993

Peterson, Bruce J, Linda A Deegan, John Helfrich, John E Hobbie, M. AJ Hullar, B. Moller, T. E Ford, et al.. “Biological Response Of A Tundra River To Fertilization”. Ecology 74, no. 3. Ecology (1993): 653-672. doi:10.2307/1940794.