ETSI TS 101 377-4-5
ETSI TS 101 377-4-5
GEO-Mobile Radio Interface Specifications; Part 4: Radio interface protocol specifications; Sub-part 5: GMR-2 Mobile Earth Station - Network Interface; Data Link (DL) layer Specifications; GMR-2 04.006
standard published 03/01/2001 by European Telecommunications Standards Institute
