2021DIN EN IEC 62325-503:2021-09 Framework for energy market communications - Part 503: Market data exchanges guidelines for the IEC 62325-351 profile (IEC 62325-503:2018); German version EN IEC 62325-503:2018
1970DIN EN IEC 62325-503 E:2019-11 Framework for energy market communications - Part 503: Market data exchanges guidelines for the IEC 62325-351 profile