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1by Halkka, Liisa, Toivonen, Heikki, Saario, Sirkka, Pykälä, JuhaGet access
Published in Nordic Journal of Botany (1992)
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2by HALKKA, ANTTI, HALKKA, LIISA, HALKKA, OLLI, ROUKKA, KAISA, POKKI, JUSSIGet access
Published in Global Change Biology (2006)
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Article in Journal/Newspaper