Phytosociology of the Beech (Fagus) Forests in East Asia - Tukasa Hukusima, Tetsuya Matsui, Takayoshi Nishio, Sandro Pignatti, Liang YANG, Sheng-You Lu, Moon-Hong Kim, Masato Yoshikawa, Hidekazu Honma, . Yuehua Wang ((Geobotany Studies))