000 00342nam a2200157Ia 4500
001 4947
008 141107s9999 xx 000 0 und d
020 _a0 273 01776 4
100 _aSmale P
245 _aTelecommunication Systems Tec Level I
250 _a2
260 _aLondon
260 _bPitman
260 _c1981
300 _a,;ill.
999 _c34599
_d34599