[1] Permissions and Obligations Expression Working Group () https://www.w3.org/2016/poe/wiki/Main_Page
[2] Permissions & Obligations Expression Working Group Charter () https://www.w3.org/2016/poe/charter
[3] ODRL Information Model () https://www.w3.org/TR/2017/CR-odrl-model-20170926/
[4] ODRL Vocabulary & Expression () https://www.w3.org/TR/2017/CR-odrl-vocab-20170926/
[5] ODRL Information Model 2.2 () https://www.w3.org/TR/2018/PR-odrl-model-20180104/
[6] ODRL Vocabulary & Expression 2.2 () https://www.w3.org/TR/2018/PR-odrl-vocab-20180104/
[7] ODRL Information Model 2.2 () https://www.w3.org/TR/2018/REC-odrl-model-20180215/
[8] ODRL Information Model 2.2 () https://w3c.github.io/poe/model/
[9] ODRL Vocabulary & Expression 2.2 () https://www.w3.org/TR/2018/REC-odrl-vocab-20180215/
[10] ODRL Vocabulary & Expression 2.2 () https://w3c.github.io/poe/vocab/
[11] ODRL: A Path Well Travelled | W3C Blog () https://www.w3.org/blog/2018/02/odrl-a-path-well-travelled/
[12] ODRL Community Group ( 版) https://www.w3.org/community/odrl/