By Kaitera Juha   Nuorteva Heikki   in Scandinavian Journal of Forest Research

ISSN:0282-7581|18|6|499-504

Taylor & Francis Ltd‎(2003)‎

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By Kaitera Juha   Nuorteva Heikki   Hantula Jarkko   in Canadian Journal of Forest Research

ISSN:1208-6037|35|2|229-234

NRC Research Press‎(2005)‎

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