TY  - BOOK
AU  - CCITT
TI  - BLUE BOOK,VOLUME VIII,FASCICLE VIII.2;DATA COMMUNICATION NETWORKS:SERVICES AND FACILITIES,INTERFACES
SN  - ERNET
U1  - 1135 
PY  - 1989///
CY  - GENEVA
PB  - ITU
N1  - SC-022
ER  -