DIN EN ISO 3166-1:2007 Codes for the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:2006); English version of DIN EN ISO 3166-1:2007-03
ITU-T E.164 The international public telecommunication numbering plan (Study Group 2)*, 2023-12-22 Update
RFC 3629-2003 UTF-8@ a transformation format of ISO 10646 (Obsoletes: 2279; Part of STD: 63)
RFC 5234-2008 Augmented BNF for Syntax Specifications: ABNF (Part of STD: 68; Obsoletes: 4234)
DIN SPEC 91286:2011 history
2011DIN SPEC 91286:2011 Electric mobility - Schemes of identifiers for E-Roaming - Contract ID and Electric Vehicle Supply Equipment ID; Text in English