000 002970000a22001330004500
245 _aCommunications equipment and systems
110 _aIEE
260 _bIEE
_c1978
440 _aIEE conference publication
440 _aNo.162
080 _a621.3(063)
_bI6
041 _aEN
942 _cBK
999 _c113502
_d113502