@article{Л.И.穆欣娜_1, author = {[Л.И.穆欣娜, 李德美]}, title = {自然—人为地理系统的主要原理}, publisher = {地理科学进展}, year = {1990}, journal = {地理科学进展}, volume = {9}, number = {4}, eid = {1}, pages = {1-5}, keywords = {}, doi = https://www.progressingeography.com/CN/10.11820/dlkxjz.1990.04.001 }