00330nam a2200133Ia 4500008004100000020001800041041000800059082001500067100002600082245003100108250001000139260003900149300000800188211209s1999    xx            000 0 und d  a9971-51-275-0  aeng  a005.44 SIL  aSILBERSCHATZ, ABRAHAM  aOPERATING SYSTEM CONCEPTS   a5 ed.  aSINGAPOREbJOHN WILEY & SONSc1999  a888