00248nam a2200109Ia 4500008004100000041001200041082001100053100001500064245004700079260000600126650000600132221030s9999    xx            000 0 und d  aEnglish  a105.23  aW. H. Hyat 0aEngineering Elecromagnaticscby W. H. Hyat  c0  aB