X.487 1999 T 17 11 ISO/IEC ISP Message handling systems IPM-MS attributes PICS – 12062-6 proforma 1999 T 17 11 ISO/IEC ISP X.488 Message handling systems EDI-MS attributes PICS – 12063-5 proforma
X.487 Message handling systems – IPM-MS attributes PICS proforma 1999 T 17 11 ISO/IEC ISP 12062-6 X.488 Message handling systems – EDI-MS attributes PICS proforma 1999 T 17 11 ISO/IEC ISP 12063-5