@article{oai:omu.repo.nii.ac.jp:00008549,
 author = {Shirano, Yoshiaki and Inagaki, Yoshio and Kawabata, Hiroaki and Nagahara, Toshikuni and Kido, Masao},
 issue = {1},
 journal = {Bulletin of University of Osaka Prefecture. Series A, Engineering and natural sciences},
 month = {Oct},
 note = {application/pdf, Bulletin of University of Osaka Prefecture. Series A, Engineering and natural sciences. 1985, 34(1), p.33-41},
 pages = {33--41},
 title = {On the Approximate Characteristic between the System Governed by the Unsymmetrical Curvilinear Restoring Force and the Piecewise Linear system with the Unsymmetrical Restoring Force},
 volume = {34},
 year = {1985}
}