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
"Schaaf, Manfred",The reduction of the product of two irreducible unitary representations of the proper orthochronous quantummechanical Poincaré group,,Springer,1970,Lecture notes in physics,,"3540051945,0387051945",,https://cir.nii.ac.jp/crid/1130000797467936512