Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) PAN Yixin,Hierarchy of cities in Ning-Zhen-Yang Region from the perspective of administrative division system,地域と環境,1344-0985,京都大学大学院人間・環境学研究科「地域と環境」研究会,2014-12-26,13,,59-70,https://cir.nii.ac.jp/crid/1390572174800788992,https://doi.org/10.14989/197666