000 00324nam a2200121Ia 4500
001 119643
008 170722s9999 xx 000 0 und d
100 _aHelszajn, Joseph
245 _aSynthesis of lumped element, distributed and planar filters /
260 _bMcGraw Hill
_aLondon
_c1990
300 _app xv,3
942 _cGEN
999 _c13728
_d13728