@inproceedings{csaw2006-03,
	TITLE     = {Improving Polygonal Hybrid Systems Reachability Analysis through the use of the Phase Portrait},
	AUTHOR    = {Gordon J. Pace and Gerardo Schneider},
	BOOKTITLE = {Computer Science Annual Workshop 2006 (CSAW'06)},
	PUBLISHER = {University of Malta},
	MONTH     = dec,
	YEAR      = 2006
}