Software engineering for telecommunication switching systems  
/ Electronics Division of the Institution of Electrical Engineers, fourth international conference, 20-24 July 1981   
 - London:   The Institution of Electrical Engineers,   1981 
 - vi, 219p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication 
<br/><br/><label>Subjects--Index Terms: </label>Science  
<br/><br/><label>Universal Decimal Class. No.: </label>621.39(082.2)  / M1