{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/web-of-science-apis/json-schema/web-of-science-document-identifiers-schema.json",
  "title": "DocumentIdentifiers",
  "description": "Document identifiers (DOI, PMID, etc.)",
  "type": "object",
  "properties": {
    "doi": {
      "type": "string",
      "description": "Digital Object Identifier"
    },
    "pmid": {
      "type": "string",
      "description": "PubMed identifier"
    },
    "issn": {
      "type": "string",
      "description": "ISSN of the source journal"
    },
    "eissn": {
      "type": "string",
      "description": "Electronic ISSN of the source journal"
    }
  }
}