[1] Guide to the use of Character Sets in Europe, 9/28/1998, 12:00:00 AM, 12/5/2020, 3:32:54 AM http://std.dkuug.dk/cen/tc304/guide/gis10538.htm
[3] KS X 1019:1994
[2] ISO/IEC 6429 の亜種。
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