00289nam a2200109Ia 4500008004100000041000800041082002000049100002100069245004300090260003800133300000800171211209s1990    xx            000 0 und d  aeng  a004.682 N90 MAD  aMADRON, THOMAS W  aLOCAL AREA NETWORKS : NEXT GENERATION   aNEW YORKbJOHN WILEY & SONSc1990  a306