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) K.L. Duggal and A. Giménez,Lightlike hypersurfaces of Lorentzian manifolds with distinguished screen,Journal of Geometry and Physics,0393-0440,Elsevier BV,2005-09,55,1,107-122,https://cir.nii.ac.jp/crid/1363670320383941376,https://doi.org/10.1016/j.geomphys.2004.12.004