In some cases it was necessary to include in one part of the VEI a concept taken from another part of the VEI, or in another authoritative terminology document (VIM, ISO/IEC 2382, etc.), in both cases with or without modification of the definition (or possibly the term). This is indicated by the mention of this source, printed in light, and placed in square brackets at the end of the definition: Example: [131-03-13 MOD] (MOD indicates that the definition has been modified)
IEC 60050-351:2006 history
2016IEC 60050-351:2013/AMD1:2016 Amendment 1 - International Electrotechnical Vocabulary - Part 351: Control technology
2013IEC 60050-351:2013 International Electrotechnical Vocabulary - Part 351: Control technology
2006IEC 60050-351:2006 International Electrotechnical Vocabulary - Part 351: Control Technology
1970IEC 60050-351:1998/COR1:1999 Corrigendum 1 - International Electrotechnical Vocabulary (IEV) - Part 351: Automatic control
1998IEC 60050-351:1998 International Electrotechnical Vocabulary - Part 351: Automatic Control (Edition 2.0; Corrigendum:07-1999)