Philips research reports :  A scientific journal of theoretical and experimental research in physics,chemistry and allied fields. 

 - Eindhoven :  Philips,  1951. 
 - v. :  gráficos ;  23 cm. 
<br/><br/> A scientific journal of theoretical and experimental research in physics,chemistry and allied fields. 
<br/><br/>V.6 N.3 June 1951. V.6 N.4 August 1951.