Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
"Sibuya, Yasutaka and 渋谷, 泰隆",Almost Periodic Solutions of a System of Ordinary Differential Equations with Periodic Coefficients,お茶の水女子大學自然科學報告,00298190,お茶の水女子大学,1962-12,13,2,21-30,https://cir.nii.ac.jp/crid/1050282677928620160,