http://www.aktors.org/ontology/support#Calendar-Date

used by 18:

• rkb-explorer-acm
• rkb-explorer-budapest
• rkb-explorer-courseware
• rkb-explorer-curriculum
• rkb-explorer-deepblue
• rkb-explorer-deploy
• rkb-explorer-eurecom
• rkb-explorer-ft
• rkb-explorer-ibm
• rkb-explorer-ieee
• rkb-explorer-irit
• rkb-explorer-laas
• rkb-explorer-newcastle
• rkb-explorer-nsf
• rkb-explorer-pisa
• rkb-explorer-risks
• rkb-explorer-roma
• rkb-explorer-ulm