DIN EN 302931:2011 智能交通系统(ITS).车辆交通.地理区域定义(英文版本EN 302931 V1.1.1 (2011-07)的核准本作为德国标准)
Intelligent Transport Systems (ITS) - Vehicular Communications - Geographical Area Definition (Endorsement of the English version EN 302931 V1.1.1 (2011-07) as German standard)