ISO/IEC 11179-4:1995 Information technology - Specification and standardization of data elements - Part 4: Rules and guidelines for the formulation of data definitions
2004ISO/IEC 11179-4:2004 Information technology - Metadata registries (MDR) - Part 4: Formulation of data definitions
1995ISO/IEC 11179-4:1995 Information technology - Specification and standardization of data elements - Part 4: Rules and guidelines for the formulation of data definitions