@inproceedings {1250, title = {Observer Design for Untimed Continuous Petri Nets}, booktitle = {ACC{\textquoteright}09: Proceedings of the 2009 conference on American Control Conference}, year = {2009}, month = {06/2009}, publisher = {IEEE Press}, organization = {IEEE Press}, address = {St. Louis, Missouri, USA}, isbn = {0743-1619}, doi = {10.1109/ACC.2009.5159893}, url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5159893&isnumber=5159764}, author = {Mahulea, Cristian and C. Seatzu and M.P. Cabasino and L. Recalde and M. Silva} }