000 00293nam a2200121Ia 4500
008 160710s1980 xx 000 0 und d
082 _a621.3885 CLA
100 _aCLARRICOATS,P.J.B.
245 _aPROGRESS IN OPTICAL COMMUNICATION
260 _bPETER
_c1980
300 _a247
942 _2ddc
_cB
999 _c48968
_d48968