Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKAMOTO Sadao,Ippen Shonin's Marital Status: A Reexamination,Journal of Indian and Buddhist Studies (Indogaku Bukkyogaku Kenkyu),0019-4344,Japanese Association of Indian and Buddhist Studies,2006,55,1,"174-177,1200",https://cir.nii.ac.jp/crid/1390001205378496384,https://doi.org/10.4259/ibk.55.174