Gilles Geeraerts Jean-François Raskin Laurent Van Begin On the Efficient Computation of the Minimal Coverability Set for Petri Nets. 98-113 2007 conf/atva/2007 ATVA http://dx.doi.org/10.1007/978-3-540-75596-8_9 db/conf/atva/atva2007.html#GeeraertsRB07