テレテキスト

テレテキスト

[1] ETS 300 706 - Enhanced Teletext specification - ets_300706e01p.pdf, , https://www.etsi.org/deliver/etsi_i_ets/300700_300799/300706/01_60/ets_300706e01p.pdf

[2] World System Teletext - Wikipedia, , https://en.wikipedia.org/wiki/World_System_Teletext

[3] Wayback Machine, https://web.archive.org/web/20160326062859/https://www.phecap.nl/download/enhenced-teletext-specs.pdf

[4]Teletex

[5] 25_524.pdf, https://www.jstage.jst.go.jp/article/sicejl1962/25/6/25_6_524/_pdf