@book{31976,
	author = {Aho, Alfred V and Hopcroft, John E.},
	title = {The design and analysis of computer algorithms},
	publisher = {Addison-Wesley Pub. Co.},
	year = {[1974]},
	series = {Addison-Wesley series in computer science and information processing},
	address = {Reading, Mass.},
	note = {Includes index.}
}