00318nam a2200121Ia 4500008004100000041001200041082001600053100001700069245005200086260003400138300000800172650001600180221030s9999    xx            000 0 und d  aEnglish  a105.23bUll  aJ. D. Ullman 0aPrinciples of Database Systemscby J. D. Ullman  bGalgotia PubaNew Delhic2002  a484  aBE Computer