Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Liu Chen,Spatial Distribution and Major Reasons of the Internal Population Migration in the Early Age of Introducing Market Ecomonic System in China,Proceedings of the General Meeting of the Association of Japanese Geographers,,The Association of Japanese Geographers,2003,2003f,0,23-23,https://cir.nii.ac.jp/crid/1390282680669246720,https://doi.org/10.14866/ajg.2003f.0.23.0