00271nam a2200097Ia 4500008004100000082001500041100001900056245005900075260003000134300000900164210430s9999    xx            000 0 und d  a530 P323 I  aClayton R.Paul  aIntroduction to Electromagnetic FieldscClayton R.Paul  aNew YorkbGraw-Hillc2007  a758p