Ruska, Ernst. <br/><br/>
The early development of electron lenses and electron microscopy / 
by Ernst Ruska ; transl. by Thomas Mulvey. 
 - Stuttgart :  Hirzel,  1980. 
 - 140 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>3777603643  
<br/><br/><label>Subjects--Index Terms: </label>Electromagnetic lenses  Electron microscopy 
<br/><br/><label>Dewey Class. No.: </label>502/.8/25  / RUS