ISO/IEC 10646 and Unicode - A short overview of the ISO/IEC 10646 and Unicode character sets. - http://www.nada.kth.se/i18n/ucs/unicode-iso10646-oview.html
What is ISO 10646? - An overview of the standard for computer representation of written characters and symbols. - http://www.info.gov.hk/digital21/eng/structure/intro_iso.html