DIN ETS 300777-4-1998 终端设备(TE).多媒体信息检索业务的终端对终端协议.第4部分:可视图文扩展的人机接口(VEMMI).扩展支持宽频多媒体信息检索业务
Terminal Equipment (TE) - End-to-end protocols for multimedia information retrieval services - Part 4: Videotex Enhanced Man Machine Interface (VEMMI) enhancements to support broadband multimedia information retrieval services; English version ETS 300777-