@article{oai:chuo-u.repo.nii.ac.jp:00006510, author = {MATSUMOTO, Akio and SZIDAROVSKY, Ferenc}, journal = {経済研究所 Discussion Paper, IERCU Discussion Paper}, month = {Nov}, note = {application/pdf, An elementary analysis is developed to determine the stability region of certain classes of ordinary di¤erential equations with two delays. Our analysis is based on determining stability switches …rst where an eigenvalue is pure complex, and then checking the conditions for stability loss or stability gain. In the cases of both stability losses and stability gains Hopf bifurcation occurs giving the possibility of the birth of limit cycles.}, title = {Dynamic Engineering Systems with Two Time Delays}, volume = {238}, year = {2014} }