000 00297nam a2200145Ia 4500
100 _aChitode/J.S.
942 _cBK
654 _aCommunications
245 _aDigital communications
260 _bTechnical
_c1998
082 _a621.382
_bCHI
300 _a513
546 _aENGLISH
999 _c23478
_d23478