Helszajn, J. <br/><br/>
Waveguide junction circulators :  theory and practice / 
J. Helszajn. 
 - Chichester :  John Wiley and Sons,  1998. 
 - 543 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0471982520  RM649.23 
<br/><br/><label>LCCN: </label>98-015975 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Circulators, Wave-guide.<br/>Junctions, Wave-guide.