@book{50,
	author = {Lipschutz, Martin M.},
	title = {Schaum's Outline of Theory and Problems of Data Processing},
	publisher = {Mcgraw-Hill,},
	year = {1980.},
	series = {Schaum's outlines.},
	address = {[S.l.] :},
	url = {http://10.10.170.122:8080/browse/book/29386}
}