United kingdom 

 - Hytera  2015  34 P. :ill. 30 cm. 
 - Wireless communication systems 
<br/><br/><label>ISSN: </label>TK 5103.2 .N67/ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SR
<br/><br/><label>LC Class. No.: </label>Northern african: wireless communications