Electrically calibrated thermal detectors of optical radiation (absolute radiometers) / 
International Commission on Illumination 
 - Paris :  Commission Internationale de l'Eclairage,  1985 
 - Vii, 31p. :  ill. 
 - Publication CIE ;  no. 65 .
<br/><br/> Foreword and summary in English, French and German 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiometers