TY  - BOOK
ED  -  International Telecommunication Union
TI  - ITU-R recommendations, 1994 M Series  Volume (Part 1 to Part 6)  
U1  - 621.396 I.T.U. 
PY  - 1994///
PB  -  International Telecommunication Union
KW  -  International Telecommunication Union
ER  -