@book{58825,
	author = {Levene, M. and Loizou, George,},
	title = {A guided tour of relational databases and beyond /},
	publisher = {Springer,},
	year = {c1999.},
	address = {London ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0812/98046727-d.html}
}