The effect of disturbances of solar origin on communications 
edited by G. J. Gassmann 
 - London  Pergamon Press  1963 
 - 349p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Communications
<br/><br/><label>Universal Decimal Class. No.: </label>551.590.2  / GAS