Identifier of the authority that defined the abbreviation (for
example, nlm-ta
for an NLM title abbreviation,
publisher
for a publisher-specific abbreviation).
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | A name, acronym, or descriptive word naming the authority
responsible for the abbreviation, for example,
publisher, meaning that the publisher of the article assigned the abbreviation. |