00297nam a2200121Ia 4500008004100000041000800041082002200049100002300071245001900094250001000113260004400123300000800167211209s1999    xx            000 0 und d  aeng  a004.6 N99 BER/GAL  aBERTSIKAS, DIMITRI  aDATA NETWORKS   a2 ed.  aNEW DELHIbPRENTICE-HALL OF INDIAc1999  a556