000 00324nam a2200121Ia 4500
005 20251007104637.0
008 251006s9999 xx 000 0 und d
100 _akong,jin au,1942-
245 0 _atheory of electromagntism waves. theory of electromaggnetism waves.
260 _aN.Y. Wiley
260 _c1975
942 _cBOK
999 _c11623
_d11623