[1] [CITE@en-us[UTS #46: Unicode IDNA Compatible Preprocessing]]
([TIME[2008-12-10 08:56:55 +09:00]] 版)
<http://www.unicode.org/reports/tr46/tr46-1.html>

[2] [CITE@en-us[Unicode IDNA Compatible Preprocesssing]]
([TIME[2009-09-30 06:24:51 +09:00]] 版)
<http://www.unicode.org/reports/tr46/tr46-2.html>