@article{oai:ritsumei.repo.nii.ac.jp:00001771,
 author = {汪, 健 and 鄭, 小平},
 issue = {2},
 journal = {立命館経済学, 立命館経済学},
 month = {Jul},
 pages = {248--266},
 title = {Developments of New Economic Geography : From Symmetry to Asymmetry},
 volume = {61},
 year = {2012}
}