Sistemi i telekomunikacionit dixhital celular (Faza 2+) (GSM); Nënsistemi i kontrollit të lidhjes me radio GSM/EDGE (3GPP TS 45.008 versioni 15.5.0 Publikimi 15)
Digital cellular telecommunications system (Phase 2+) (GSM); GSM/EDGE Radio subsystem link control (3GPP TS 45.008 version 15.5.0 Release 15)