@article{oai:omu.repo.nii.ac.jp:00008405, author = {Shirao, Yoshiaki and Kawabata, Hiroaki and Nagahara, Toshikuni and Inagaki, Yoshio}, issue = {2}, journal = {Bulletin of University of Osaka Prefecture. Series A, Engineering and natural sciences}, month = {Mar}, note = {application/pdf, Bulletin of University of Osaka Prefecture. Series A, Engineering and natural sciences. 1992, 40(2), p.217-231}, pages = {217--231}, title = {Bifurcations and Chaos Phenomena in Piecewise Linear Systems with Unsymmetrical Restoring Force}, volume = {40}, year = {1992} }