CCITT Plenary Assembly (Red Book) Malaga-Torremolinos, 1984 :   Specifications of Measuring Equipment, Recommendations of the O Series : Fascicle /   Vol.IV.4 

 - Geneva :   ITU,   1984. 
 - X, 160 s.;   30 cm. 
<br/><br/><label>ISBN: </label>9261021212