Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Rinko Miyazaki and Dohan Kim and Toshiki Naito and Jong Son Shin,"Fredholm operators, evolution semigroups, and periodic solutions of nonlinear periodic systems",Journal of Differential Equations,0022-0396,Elsevier BV,2014-12,257,11,4214-4247,https://cir.nii.ac.jp/crid/1360004232265507584,https://doi.org/10.1016/j.jde.2014.08.007