DIN EN 301141-2:2002 综合业务数字网(ISDN).窄带多重业务传送系统(NMDS).第2部分:实施协议声明(PICS)格式规范
Integrated Services Digital Network (ISDN) - Narrowband Multi-service Delivery System (NMDS) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301141-2 V 1.3.1 (2001-06) as German