@article{oai:geitan.repo.nii.ac.jp:00001483,
 author = {劉, 美貞 and Yu, Mi-Jeoung},
 journal = {大分県立芸術文化短期大学研究紀要},
 month = {Mar},
 pages = {129--140},
 title = {A Frequency Analysis of The Lyrics of South-Korean Trot Song},
 volume = {44},
 year = {2007}
}