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Researches on Correlation and Geographic Variation in Wood Chemical Compositions of Betula platphylla in Natural Stands
SHANG Jie;JIA Hong-Bai;WANG Qiu-Yu*
Bulletin of Botanical Research . 2007, (5): 607 -611 .  DOI: 10.7525/j.issn.1673-5102.2007.05.022