Erzsébet Csuhaj-Varjú Alexandru Mateescu On a Connection Between Cooperating Distributed Grammar Systems and Basic Process Algebra. 37-50 2006 73 Fundam. Inform. 1-2 http://iospress.metapress.com/openurl.asp?genre=article&issn=0169-2968&volume=73&issue=1&spage=37 db/journals/fuin/fuin73.html#Csuhaj-VarjuM06