000 00497nam a2200169Ia 4500
001 10283
003 IN-NITTTR
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040 _beng
040 _cIN-NITTTR
041 _aeng
082 _a621.37 K526L
100 _aKeitz, H. A. E.
245 0 _aLight calculations and measurements :
_b an introduction to the systems of qyantities and units in light-technology and to photometry /
_cKeitz, H. A. E.
942 _2ddc
_cBK
999 _c12920
_d12920