[1] Open License Expression Working Group Charter (DRAFT) (2015-08-06 21:12:43 +09:00 版) http://w3c.github.io/ole/charter.html
[2] Open License Expression Working Group Charter in Development (Advance Notice) (Coralie Mercier 著, 2015-08-06 20:58:41 +09:00 版) https://lists.w3.org/Archives/Public/public-new-work/2015Aug/0003.html
[3] ODRL