ETSI TR 133 920-2007 数字蜂窝通信系统(第2+阶段).全球移动通信系统(UMTS).基于SIM卡的一般引导架构(GBA).早期执行特征(版本7.2.0).3GPP TR 33.920(版本7.2.0,第7次发布)
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); SIM card based Generic Bootstrapping Architecture (GBA); Early Implementation Feature V7.2.0; 3GPP TR 33.920 version 7.2.0 Release 7