著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) 吉野 正史,Normal forms for commuting vector fields near a common fixed point,"Proceedings of SPT 2007, World Scientific",,,2008,,,81-91,https://cir.nii.ac.jp/crid/1010282257020451719,