@article {1413,
	title = {An algorithm to compute the minimal siphons in S4PR nets},
	journal = {Discrete Event Dynamic Systems},
	volume = {22},
	year = {2012},
	month = {12/2012},
	pages = {403-428},
	publisher = {Springer},
	type = {Published online: 26 February 2012},
	issn = {0924-6703},
	doi = {10.1007/s10626-012-0132-4},
	url = {http://dx.doi.org/10.1007/s10626-012-0132-4},
	author = {E. E. Cano and C. A. Rovetto and J.M. Colom}
}

