BOOKQUE

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Macrophyte Succession in Swedish Lakes Caused by Deposition of Airborne Aoid Substances
O. Grahn
· 1975
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Oligotrophication: A Self-accelerating Process in Lakes Subjected to Excessive Supply of Acid Substances
O. Grahn , H. Hultberg , L. Landner
· 1974
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Kvicksilvrets fördelning i olika trofinivåer
O. Grahn , H. Hultberg , Arne Jernelöv
· 1976
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Strödda minnen efter predikant P. V. Lundqvist
O. Grahn
· 1942