@techreport{oai:kobe-cufs.repo.nii.ac.jp:00001858,
 author = {Sano, Koichiro and Tomoda , Yasunobu},
 issue = {49},
 month = {Jun},
 note = {application/pdf},
 title = {Rat races in admission exam are beneficial for society},
 year = {2014}
}