@inproceedings {IPMaReSi05,
	title = {Optimal Observability for Continuous Petri Nets},
	year = {2005},
	month = {7},
	pages = {CDROM},
	url = {http://webdiis.unizar.es/~cmahulea/papers/download.php?id=11},
	author = {Mahulea, Cristian and L. Recalde and M. Silva}
}

