By Malaty Ramses   Toppinen Anne   Viitanen Jari   in Canadian Journal of Forest Research

ISSN:1208-6037|37|1|178-187

NRC Research Press‎(2006)‎

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By Leskinen Pekka   Viitanen Jari   Kangas Annika   Kangas Jyrki   in Forest Science

ISSN:0015-749X|52|3|304-312

Society of American Foresters‎(2006)‎

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