000 00371nam a2200145Ia 4500
008 241225s9999 xx 000 0 und d
020 _a9812403957
082 _a621.382
_bDUN
100 _aDungan,Frank R.
245 0 _aElectronic communicationis systems
260 _aSingapore :
_bThomas Learing,
_c2002
300 _a818.
365 _a550
650 _aApplied physics
999 _c24450
_d24450