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003 CEME
005 20210628202521.0
008 210209b xxu||||| |||| 00| 0 eng d
020 _a0-85296-794-2
040 _c.
082 _a621.38131 HEL
100 _aHelszajn, J
_960279
245 _aRidge waveguide and passive microwave components
260 _aUK
_bIEE
_c2000
300 _aXII,327P
650 _aMICROWAVE COMPONENTS; PASSIVE MICROWAVE COMPONENTS
_960280
942 _cBK
_2ddc
999 _c570049
_d570049