@INPROCEEDINGS{
TITLE="A geometrical treatment for obtaining necessary and sufficient conditions for joint quadratic Lyapunov function existence for state-dependent, switched systems: a two-dimensional case",
AUTHOR="W. M. Griggs, C. K. King, R. N. Shorten, O. Mason and K. Wulff",
YEAR="2009",
BOOKTITLE="17th Mediterranean Conference on Control and Automation, Thessaloniki, Greece",
PAGES="1337-1342"
}