Stéphane Demri Ranko Lazic Arnaud Sangnier Model Checking Freeze LTL over One-Counter Automata. 490-504 2008 FoSSaCS http://dx.doi.org/10.1007/978-3-540-78499-9_34 conf/fossacs/2008 db/conf/fossacs/fossacs2008.html#DemriLS08