Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Obara Takashi,Branch cut contributions to backward unequal-mass scattering processes,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,1969-04,41,4,1041-1045,https://cir.nii.ac.jp/crid/1522825129667866880,https://doi.org/10.1143/ptp.41.1041