[1]
[CITE[iCalendar]] <http://www.asahi-net.or.jp/~CI5M-NMR/iCal/>
([[名無しさん]])

[2]
[CITE[Techblogging]] ([CODE[2007-02-15 09:15:30 +09:00]] 版) <http://blog.drinsama.de/erich/en/2007021501-icalendar-is-broken>
([[名無しさん]] [WEAK[2007-02-16 00:24:00 +00:00]])

[3] [CITE@en[RFC 6868 - Parameter Value Encoding in iCalendar and vCard]]
( ([TIME[2013-06-27 22:55:50 +09:00]] 版))
<http://tools.ietf.org/html/rfc6868>