@book{12958,
	author = {Hopcroft, John E},
	title = {Introduction to automata theory, languages, and computation},
	publisher = {Addison Wesley Publishing},
	year = {2001},
	address = {Boston},
	edition = {2nd},
	url = {https://libgen.is/book/index.php?md5=7270E9AB5F65291C3369280EC4B6EB3B}
}