@article{oai:nichibun.repo.nii.ac.jp:00005104,
 author = {山折,  哲雄},
 journal = {日文研, Nichibunken},
 month = {Jul},
 pages = {17--21},
 title = {<エッセイ>「演歌」三題},
 volume = {2},
 year = {1989}
}