@book{23441,
	author = {Rich,Elaine},
	title = {Automata, Computability and Complexity},
	publisher = {Dorling Kindersley},
	year = {2013},
	address = {New Delhi},
	url = {https://libgen.is/book/index.php?md5=9D3DB4715FD4DE9412CA9C3F9CB679F0}
}