@article{Lianlian XIAO_244, author = {Lianlian XIAO, Linsheng ZHONG, Rui ZHOU, Hu YU}, title = {Review of international research on national parks as an evolving knowledge domain in recent 30 years}, publisher = {PROGRESS IN GEOGRAPHY}, year = {2017}, journal = {PROGRESS IN GEOGRAPHY}, volume = {36}, number = {2}, eid = {244}, pages = {244-255}, keywords = {national park;Citespace III;map of knowledge domain;literature review;enlightenment}, doi = https://www.progressingeography.com/EN/10.18306/dlkxjz.2017.02.010 }