@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040178,
 author = {Kataoka, Kiyoomi and Satoh, Yoshiaki},
 issue = {4},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {},
 note = {application/pdf},
 pages = {565--626},
 title = {Formal Symbol Type Solutions of Fuchsian Microdifferential Equations},
 volume = {9},
 year = {2002}
}