@book{2657,
	author = {Hopcroft, John E. and Motwani, Rajeev },
	title = {Introduction to automata theory, languages, and computation /},
	publisher = {Dorling Kindersley,},
	year = {c2008 (2018 printing).},
	address = {India:},
	edition = {- 3rd ed. -}
}