Black, James Leslie <br/><br/>
FORTEL :  a telecommunications forescasting system / 
by James Leslie Black 
 - Portland :  Portland State University,  1981 
 - 225 p. ;  21 cm. 
<br/><br/>Thesis (Ph.D.)-Portland State University, 1981 
<br/><br/>Includes bibliographical references (p.189-191) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems