00356nam a2200121 a 450000500170000002000150001708200210003210000210005324500860007426000320016030000200019270000220021220251203092006.0  a8185015961  a005.131,bD, hop  aHopcroft, John E  aIntroduction to automata theory,languages, and computation, John E. Hopcroft, eng  aNew Delhi, Narosa, Inc1996  axii,418p.c20cm  aUllman, Jeffrey D