ITU-T S.2-1989 Coding Scheme Using International Telegraph Alphabet No. 2 (ITA2) to Allow the Transmission of Capital and Small Letters - Telegraph Services Terminal Equipment (Study Group IX) 4 pp
that there are advantages in establishing an international standard for the transmission of capital and unanimously declares the view
ITU-T S.2-1989 history
1989ITU-T S.2-1989 Coding Scheme Using International Telegraph Alphabet No. 2 (ITA2) to Allow the Transmission of Capital and Small Letters - Telegraph Services Terminal Equipment (Study Group IX) 4 pp