Philips research reports: supplements 

 - EINDHOVEN :  N. V. PHILIPS' GLOEILAMPENFABRIEKEN, 
 - Irregular 
<br/><br/><label>ISSN: </label>0554-0615 
 = Philips research reports: supplements 
 = PHILIPS RES. REP., SUPPL. 
<br/><br/><label>Subjects--Index Terms: </label>INGENIERIA ELECTRICA;  INGENIERIA  MECANICA