000 00254nam a2200085Ia 4500
008 150310s9999 xx 000 0 und d
100 _aNOTES ON APPLIED SCIENCES NO. 23. GILLIHARN E.J.
245 _aRADIOMETRIC STANDARDS & MEASUREMENTS
260 _c1961
_bH.M.S.O
999 _c4656
_d4656