@article {1450,
	title = {On fluidization of discrete event models: observation and control of continuous Petri nets},
	journal = {Discrete Event Dynamic Systems: Theory and Applications},
	volume = {21},
	year = {2011},
	month = {12/2011},
	pages = {497},
	chapter = {427},
	author = {M. Silva and J. Julvez and C.R. Vazquez and Mahulea, Cristian}
}

