@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039930,
 author = {Sibuya, Yasutaka},
 issue = {5},
 journal = {Journal of the Faculty of Science, University of Tokyo. Sect. 1, Mathematics, astronomy, physics, chemistry = 東京大學理學部紀要. 第1類, 數學, 天文學, 物理學, 化學},
 month = {Feb},
 pages = {527--540},
 title = {Sur reduction analytique d'un systeme d'equations differentielles ordinaires lineaires contenant un parametre},
 volume = {7},
 year = {1958}
}