Dahl, Poul. <br/><br/>
Introduction to electron and ion optics / 
Poul Dahl. 
 - New York :  Academic Press,  1973. 
 - vii, 147 p. :  ill. ;  24 cm. 
<br/><br/>Bibliogr.: p. 142. 
<br/><br/><label>ISBN: </label>012200650 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electron optics.<br/>Electron beams.<br/>Particle accelerators<br/>Ions