Julien Cervelle Rémi Forax Gilles Roussel A simple implementation of grammar libraries. 65-77 2007 4 Comput. Sci. Inf. Syst. 2 http://www.comsis.fon.bg.ac.yu/ComSIS/Vol4No2/RegularPapers/paper4.htm db/journals/comsis/comsis4.html#CervelleFR07