著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL ,Numerical approach to the waiting time for the one-dimensional porous medium equation,,Graduate School of Mathemaitcs Kyushu University,1999,Kyushu University preprint series in mathematics,,,,https://cir.nii.ac.jp/crid/1130000795544335360