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Alkalinity and chemical oxygen demand in some Finnish rivers during the periods 1911-1931 and 1962-1972 = Eräiden Suomen jokien alkaliniteetti- ja CODMn-arvoja vuosilta 1911-1931 ja 1962-1979

Erkki Alasaarela & Pertti Heinonen ... [a...
Bok Språk ikke angitt 1984

Acidity problems caused by flood control works of the river Kyrönjoki = Kyrönjoen tulvasuojelutöiden aiheuttamista happamuusongelmista

Erkki Alasaarela. Removal of organic and ...
Bok Språk ikke angitt 1982

Phytoplankton and environmental conditions in the nothern part of the Bothnian Bay

Erkki Alasaarela
Bok Engelsk 1980

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