@article{李为_7, author = {[李为, 张平宇, 宋玉祥]}, title = {清代东北地区土地开发及其动因分析}, publisher = {地理科学}, year = {2005}, journal = {地理科学}, volume = {25}, number = {1}, eid = {7}, pages = {7-16}, keywords = {清代;东北地区;土地开发;趋动因子}, doi = http://geoscien.neigae.ac.cn/CN/10.13249/j.cnki.sgs.2005.01.7 }