Braun, Gehard. <br/><br/>
Planning and engineering of shortwave links 

 - 2a ed. 
 - Berlín :   Siemens,   1986. 
 - 338 p. 
<br/><br/><label>ISBN: </label>3800914581 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTRONICA<br/>ONDA CORTA<br/>ANTENAS
<br/><br/><label>Universal Decimal Class. No.: </label>621.38