ETSI TS 100 901-2001
数字蜂窝通信系统(第2+阶段).短消息业务(SMS)的技术实现.点对点(PP)3GPP TS 03.40(版本7.5.0,1998年发布)
Digital Cellular Telecommunications System (Phase 2+); Technical Realization of the Short Message Service (SMS) Point-to-Point (PP) (3GPP TS 03.40 Version 7.5.0 Release 1998)