@article{杨远兵:7, author = {[杨远兵, 刘玉成, 方任吉]}, title = {九寨沟自然保护区森林植物的数量分类}, publisher = {生态学杂志}, year = {1998}, journal = {生态学杂志}, volume = {}, number = {3}, eid = {7}, pages = {7-10}, keywords = {}, url = http://www.cje.net.cn/CN/abstract/article_19072.shtml }