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)
,Observation of negative velocity and nonadherence to the conventional group velocity in Rb vapor,Proc.Int.Quantum Electronics Conference,,,2004,,,,https://cir.nii.ac.jp/crid/1010000781779154435,