@article{李萍萍:16, author = {[李萍萍, 章熙谷]}, title = {持续农业与中国的生态农业}, publisher = {生态学杂志}, year = {1993}, journal = {生态学杂志}, volume = {}, number = {2}, eid = {16}, pages = {16-18}, keywords = {}, url = http://www.cje.net.cn/CN/abstract/article_18555.shtml }