European digital cellular telecommunications system (Phase 2) - Technical realisation of facsimile group 3 non-transparent; English version ETS 300539:1995
Digital cellular telecommunications system (Phase 2) - Attachment requirements for Global System for Mobile communications (GSM) - Part 1: Mobile stations in the GSM 900 and DCS 1 800 bands - Access (GSM 13.01 version 4.1.1)
