@article{oai:u-ryukyu.repo.nii.ac.jp:02007009,
 author = {Akahori, Takao and 赤堀, 隆夫},
 issue = {27},
 journal = {琉球大学理工学部紀要. 理学編, Bulletin of Science & Engineering Division, University of Ryukyus.   Mathematics & natural sciences},
 month = {Mar},
 note = {紀要論文},
 pages = {15--18},
 title = {On the existence of a versal family of deformations of solutions of a differential equation},
 year = {1979}
}