@article{oai:teapot.lib.ocha.ac.jp:00034673, author = {NAKAI, ISAO}, issue = {1}, journal = {お茶の水女子大學自然科學報告}, month = {Jun}, note = {application/pdf, 紀要論文}, pages = {107--110}, title = {WEB GEOMETRY of SOLUTIONS of HOLONOMIC FIRST ORDER PDEs}, volume = {53}, year = {2002} }