00294nam a2200109Ia 4500008004100000041001200041100001700053245005900070260003100129300000800160650001600168221030s9999    xx            000 0 und d  aEnglish  aJ. D. Ullman 0aPrinciples of Database Systems 2nd Edcby J. D. Ullman  bGalgotia PubaNew Delhic0  a484  aBB Computer