621.3815   Gur   F  
             Guerivch , Aleksandr Grigorevich
                   Ferritos at microwave frequencias . Arthorized
              tr.  from the Russian by  A . Tybulewicz.. London,
              Heywood , 1963 
                    329   p.   ilus . 24  cm . 
                    "  Bibliography "  :  p .  309 -322