000			00303nam a2200109Ia 4500
008			200302s9999 xx 000 0 und d
100			_aJohn E. Kaufman
245			_aIES Ligthing Handbook The Standard Lighting Guide 4th ed.,
260			_bIlluminating Engineering Society
260			_c1968
300			_a112 P.,
999			_c27 _d27