@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039677, author = {Okamoto, Kazuo}, issue = {1}, journal = {Journal of the Faculty of Science, the University of Tokyo. Sect. 1 A, Mathematics = 東京大学理学部紀要. 第1類A, 数学}, month = {Mar}, note = {application/pdf}, pages = {183--198}, title = {Sur la convergence de solutions formelles d'equations differentielles avec singularites de premiere classe}, volume = {26}, year = {1979} }