Dynamics of ciliated protozoa communities in activated-sludge process

Standard methods: For the examination of water and waste water

Analytical Biochemistry · 1990 · 72.5K citations · Full text

Natural Resources, Environmental Engineering, Environmental Sciences +10

The Biology of Polluted Waters

Peter Doudoroff, H. B. N. Hynes · Journal of Wildlife Management · 1965 · 750 citations

Natural Sciences, Biology, Environmental Sciences +12

The Biology of Polluted Waters

David Frey · Limnology and Oceanography · 1961 · 503 citations · Full text

Natural Sciences, Biology, Environmental Sciences +12

Pollution ecology of freshwater invertebrates

Thomas C. Cheng · Journal of Invertebrate Pathology · 1975 · 302 citations

Life Sciences, Ecology, Environmental Sciences +10

Protozoa in biological sewage-treatment processes—II. Protozoa as indicators in the activated-sludge process

C. R. Curds, Alex Cockburn · Water Research · 1970 · 143 citations

Engineering, Environmental Engineering, Microbiology +13