# ReleaseExtIds ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **doi** | **String** | Digital Object Identifier (DOI), mostly for published papers and datasets. Should be registered and resolvable via https://doi.org/ | [optional] [default to None] **wikidata_qid** | **String** | Wikidata entity QID | [optional] [default to None] **isbn13** | **String** | ISBN-13, for books. Usually not set for chapters. ISBN-10 should be converted to ISBN-13. | [optional] [default to None] **pmid** | **String** | PubMed Identifier | [optional] [default to None] **pmcid** | **String** | PubMed Central Identifier | [optional] [default to None] **core** | **String** | CORE (https://core.ac.uk) identifier | [optional] [default to None] **arxiv** | **String** | arXiv (https://arxiv.org) identifier; must include version | [optional] [default to None] **jstor** | **String** | JSTOR work identifier | [optional] [default to None] **ark** | **String** | ARK identifier | [optional] [default to None] **mag** | **String** | Microsoft Academic Graph identifier | [optional] [default to None] [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)