000 00421nam a22001577a 4500
005 20220518143854.0
008 110507t xxu||||| |||| 00| 0 eng d
020 _a0471940569
082 _a621.381 5
_bHEL
100 _aHelszajn,J
245 _aMicrowave planar passive circuits and filters
260 _aNew York
_bJohn Wiley
_c1994
300 _ax,403p.
653 _amicrowave circuits
_amicrowave planar
942 _cBK
999 _c225388
_d225388