@book{27088,
	author = {Costal Costa, Dolors,},
	title = {El modelo relacional y el álgebra relacional /},
	publisher = {UOC, la universidad virtual,},
	year = {[2002]},
	address = {[Barcelona] :},
	note = {On cover: "P01/75002/00576"},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/5814/}
}