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) 北 直泰,Nonlinear Schroedinger equation with δ functions as initial data,Sugaku repository in American Mathematical Society,,,2013,62,,329-345,https://cir.nii.ac.jp/crid/1010000782043769479,