Sami Evangelista Christophe Pajault Jean-François Pradat-Peyre A Simple Positive Flows Computation Algorithm for a Large Subclass of Colored Nets. 177-195 2007 conf/forte/2007 FORTE http://dx.doi.org/10.1007/978-3-540-73196-2_12 db/conf/forte/forte2007.html#EvangelistaPP07