@inproceedings{paperid:1008088,
author = {Afsharnejad, Zahra},
title = {Effect of nonlinear damping on pendulum},
booktitle = {هشتمین سیمینار معادلات دیفرانسیل},
year = {2008},
location = {اصفهان, IRAN},
keywords = {pendulum-damping-nonlinear -melnikov theory - periodic orbit- chaos},
}