<ali:license_ref>
License Reference (NISO Access License and Indicators)
A reference to a URI that carries the license terms specifying how
a work may be used.
Remarks
This element is defined in NISO RP-22-2015 Access License and Indicators Recommended
Practice.
Date Attributes A given document may contain more than one
<ali:license_ref>, with a @start_date attribute used to differentiate.
Attributes
Content Model
<!ELEMENT ali:license_ref %license-ref-model; >
Expanded Content Model
(#PCDATA)
Description
Text, numbers, or special characters
This element may be contained in:
Example 1
The document is free to read for a limited period of time:
...
<permissions>
<license>
<ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2015-02-03">
http://www.examplesite.org/open_license.html</ali:license_ref>
</license>
</permissions>
...
Example 2
An example of licensing and usage rights changing over time. The content is under a
proprietary license at first (initial publication) and then under a CC BY license a year later.
... <permissions> <license> <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2014-02-03"> http://www.psychoceramics.org/license_v1.html</ali:license_ref> <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2015-02-03"> http://creativecommons.org/licenses/by/3.0/</ali:license_ref> </license> </permissions> ...