000 00314nam a2200133Ia 4500
008 230703s9999 xx 000 0 und d
100 _aKeiser, Gerd
245 0 _aOptical Communication Essentials
250 _a…
260 _bTMH
_aN.Delhi
_c2009
300 _a373
650 _aCivil Engineering
942 _cBK
999 _c12474
_d12474