73 resultados para vedenlaatu
em Helda - Digital Repository of University of Helsinki
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Tiivistelmä: Kasviplanktonin kehitys vuosina 1968-1990 subarktisessa Lokan tekoaltaassa
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English summary: Lake Päijänne research I
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English summary: Lake Päijänne research II
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English summary: Lake Päijänne research III
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English summary: Comparative studies on raw water quality and treatment costs in Sweden and Finland