00299nam a2200109Ia 4500008004100000082001500041100001600056245003700072260004500109300001300154650002200167240817s9999    xx            000 0 und d  a001.64 D26  aDate, C. J. 0aIndroduction to database systems  c1983a Londonb Addison - wesley pub co.  aV.II. p.  a Computer Science