@conference {chang2012self,
	title = {Self Recovery Phenomenon of Mechanical Systems With Unactuated Cyclic Variables due to Damping-Like Forces},
	booktitle = {ASME 2012 5th Annual Dynamic Systems and Control Conference joint with the JSME 2012 11th Motion and Vibration Conference},
	year = {2012},
	pages = {617{\textendash}624},
	publisher = {American Society of Mechanical Engineers},
	organization = {American Society of Mechanical Engineers},
	author = {Chang, Dong Eui and Jeon, Soo}
}
