@article{oai:omu.repo.nii.ac.jp:00008702,
 author = {Shirao, Yoshiaki and Kido, Masao},
 issue = {1},
 journal = {Bulletin of University of Osaka Prefecture. Series A, Engineering and natural sciences},
 month = {Sep},
 note = {application/pdf, Bulletin of University of Osaka Prefecture. Series A, Engineering and natural sciences. 1977, 26(1), p.25-37},
 pages = {25--37},
 title = {On the Periodic Solutions of Nonautonomous Piecewise Linear Systems with Asymmetric Characteristics},
 volume = {26},
 year = {1977}
}