00326nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001600078100002000094245003500114260002100149650002200170116920261006003518.0120911s9999    xx            000 0 und d  a0070653194  a621.382 TRU  aTrauxal,John G.  aThe age of electronic messages  aMcgraw-Hill Pub.  aTelecommunication