[1] CalConnect - The Calendaring and Scheduling Consortium ( (Dave Thewlis 著, 2011-12-17 11:30:46 +09:00 版)) http://www.calconnect.org/

[2] Index to Calendaring and Scheduling Standards - The Calendaring and Scheduling Consortium ( (David C. Thewlis 著, 2011-12-17 11:31:03 +09:00 版)) http://www.calconnect.org/CD1104_Calendaring_Standards.shtml