2019-07-12 Calendaring and scheduling — Calendar subscription upgrades CC/CD 51005:2018 csd/cc-51005.xml csd/cc-51005.html csd/cc-51005.pdf csd/cc-51005.doc csd/cc-51005.rxl en 2018 CalConnect CalConnect CalConnect 2018-11-30 1 en committee-draft CALENDAR