[1] [CITE@en[Calendar API]]
( ([TIME[2011-04-20 00:20:10 +09:00]] 版))
<http://www.w3.org/TR/2011/WD-calendar-api-20110419/>

[2] [CITE@en[Calendar API]]
( ([TIME[2012-10-02 20:46:33 +09:00]] 版))
<http://dev.w3.org/2009/dap/calendar/>