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兴隆山青杄林模糊数学分类研究
杨凤翔 赵松岭 陈庆诚
USING THE FUZZY MATHEMATICAL METHOD TO STUDY THE CLASSIFICATION OF PICEA NEOVEITCHII FOREST DISTRIBUTING IN XINGLONG MOUNTAIN
Yang Feng-xiang;Zhao Song-ling;Chen Qing-cheng
林业科学 . 1982, (2): 143 -150 .