Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Homma, Yuko",Projective Normality and the Defining Equations of Ample Invertible Sheaves on Elliptic Ruled Surfaces with e≧0,お茶の水女子大學自然科學報告,00298190,お茶の水女子大学,1980-12,31,2,61-73,https://cir.nii.ac.jp/crid/1050282677926753664,