CCITT Rec. T.51 (11/1988) – CODED CHARACTER SETS FOR TELEMATIC SERVICES
1 Scope
2 Graphic character sets
2.1 Primary set
2.2 Supplementary set
3 Code extension technique
3.1 General
3.2 Definitions
3.3 Code extension facilities
3.4 Types of character sets
3.5 Invocation functions
ANNEX A – Superset of the Repertoire of the Latin Based Character Set