20191206              frey50         <br/><br/>
 - Notes bibliogr. 
 - AN .
<br/><br/>
 = [Les Ulis] 
<br/><br/><label>LCCN: </label>978-2-7598-0761-1 
<br/><br/><label>Subjects--Corporate Names: </label><br/>ENVIRONNEMENT<br/>ECOLOGIE<br/>TELECOMMUNICATIONS