00309nam a2200109Ia 4500008004100000082001800041100001500059245005300074250001900127260004500146300000800191240913s9999||||xx |||||||||||||| ||und||  a006.33  LIN/A  aPeter Linz 3aAn Introduction to formal Lanquages and automata  a4th Ed.6th Ed.  bNarosa Publishing HouseaNew Delhic2009  a415