List 218: License expression type
| Value | Description | Notes |
|---|---|---|
| 01 | Human readable | Document (eg Word file, PDF or web page) Intended for the lay reader |
| 02 | Professional readable | Document (eg Word file, PDF or web page) Intended for the legal specialist reader |
| 10 | ONIX-PL | |
| 20 | ODRL | Open Digital Rights Language (ODRL) in JSON-LD format. Used for example to express TDM licenses using the W3C TDM Reservation Protocol |