@inproceedings{KRS2004b, address = {Amsterdam, The Netherlands}, author = {Mojmír Křetínský and Vojtěch Řehák and Jan Strejček}, booktitle = {INFINITY'2003: 5th International Workshop on Verification of Infinite-State Systems}, edition = {2004}, keywords = {process rewrite systems; state extension; infinite-state; decidability; reachability}, language = {eng}, location = {Amsterdam, The Netherlands}, pages = {75-88}, publisher = {Elsevier Science}, title = {On Extensions of Process Rewrite Systems: Rewrite Systems with Weak Finite-State Unit}, url = {http://dx.doi.org/10.1016/j.entcs.2003.10.008}, year = {2004} }