000 00366nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a0077073754
082 _a621.381327 H474;1
100 _aHELSZAJN,J
245 0 _aMICROWAVE ENGINEERING: PASSIVE ACTIVE AND NON RECIPROCAL CIRCUITS
260 _aLONDON
_bMcGraw-Hill
_c1992
300 _a23X15
942 _cBK
_2DDC
999 _c24106
_d24106