000 00290nam a2200121Ia 4500
008 160710s1991 xx 000 0 und d
082 _a621.382 DUN
100 _aDUNLOP,J.
245 _aTELECOMMUNICATION ENGINEERING
260 _bCHAPMAN AND HALL
_c1991
300 _a508
942 _2ddc
_cB
999 _c54229
_d54229