@booklet {GreTR03,
	title = {Necessary and Sufficient Conditions for Asymptotic Stability of Second Order LTI Switching Systems},
	year = {2003},
	publisher = {Dept. of Electrical Systems and Automation, University of Pisa},
	keywords = {Robotics},
	author = {L. Greco and F. Tocchini and M. Innocenti}
}
