@article{oai:ipsj.ixsq.nii.ac.jp:00008490,
 author = {中西, 正和},
 issue = {7},
 journal = {情報処理},
 month = {Jul},
 title = {数楽オリンピックへのいじわる},
 volume = {11},
 year = {1970}
}