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Primary Study on Stem Quality of Cork Oak (Quercus variabilis Blume)Plantations
ZHAO Haoyan, LU Yuanchang, NING Jinkui, LIU Gang, LIU Xianzhao
Forest and Grassland Resources Research . 2008, (1): 44 -48 .  DOI: 10.3969/j.issn.1002-6622.2008.01.011