{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Publication",
  "description": "A LU publication",
  "required": ["_id", "type", "classification", "status", "external", "title"],
  "properties": {
    "_id": {
      "description": "unique publication id",
      "type": "string"
    },
    "type": {
      "description": "type of publication",
      "enum": ["book", "bookChapter", "bookEditor", "conference", "dissertation", "journalArticle", "licentiateThesis", "misc"]
    },
    "classification": {
      "description": "UGent classification code of publication",
      "enum": ["A1", "A2", "A3", "A4", "B1", "B2", "B3", "C1", "C3", "D1", "D2", "P1", "V", "U"]
    },
    "article_type": {
      "description": "type of journal article",
      "enum": ["letterNote", "original", "proceedingsPaper", "review"]
    },
    "dissertation_type": {
      "description": "type of dissertation",
      "enum": ["monograph", "composite"]
    },
    "misc_type": {
      "description": "type of miscellaneous publication",
      "enum": [
        "bibliographicalItem",
        "bibliography",
        "biographicalItem",
        "bookReview",
        "correction",
        "editorialMaterial",
        "exhibitionReview",
        "lemma",
        "newsArticle",
        "report",
        "textEdition",
        "theatreReview",
        "other"
      ]
    },
    "conference_type": {
      "description": "type of conference publication (legacy)",
      "enum": ["conferencePaper", "meetingAbstract", "proceedingsPaper"]
    },
    "status": {
      "description": "record status (the public api only returns records with status 'public')",
      "enum": ["unsubmitted", "submitted", "returned", "public", "pdeleted"]
    },
    "publication_status": {
      "description": "publication status of the publication",
      "enum": ["unpublished", "submitted", "inpress", "published"]
    },
    "external": {
      "description": "was the publication published while none of the authors were employed at LU",
      "enum": [0, 1]
    },
    "date_created": {
      "description": "date and time when the record was created",
      "$ref": "#/definitions/datetime"
    },
    "date_updated": {
      "description": "date and time when the record was last changed",
      "$ref": "#/definitions/datetime"
    },
    "date_submitted": {
      "description": "date and time when the record was submitted",
      "$ref": "#/definitions/datetime"
    },
    "date_approved": {
      "description": "date and time when the record was approved",
      "$ref": "#/definitions/datetime"
    },
    "created_by": {
      "description": "person who created the record",
      "$ref": "#/definitions/person"
    },
    "last_reviewed_by": {
      "description": "person who last reviewed the record",
      "$ref": "#/definitions/person"
    },
    "copyright_statement": {
      "description": "copyright statement",
      "type": "string"
    },
    "affiliation": {
      "description": "list of academic organizations the publication is output of",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "$ref": "#/definitions/affiliation"
      }
    },
    "language": {
      "description": "list of ISO639-2 language codes",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string",
        "minLength": 3,
        "maxLength": 3
      }
    },
    "subject": {
      "description": "list of subject categories of the publication",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "enum": [
          "Agriculture and Food Sciences",
          "Arts and Architecture",
          "Biology and Life Sciences",
          "Business and Economics",
          "Chemistry",
          "Cultural Sciences",
          "Earth and Environmental Sciences",
          "General Works",
          "History and Archaeology",
          "Languages and Literatures",
          "Law and Political Science",
          "Mathematics and Statistics",
          "Medicine and Health Sciences",
          "Performing Arts",
          "Philosophy and Religion",
          "Physics and Astronomy",
          "Science General",
          "Social Sciences",
          "Technology and Engineering",
          "Veterinary Sciences"
        ]
      }
    },
    "keyword": {
      "description": "list of keywords",
      "type": "array",
      "minItems": 1,
      "additionalItems": false,
      "items": {
        "type": "string"
      }
    },
    "title": {
      "description": "publication title",
      "type": "string"
    },
    "alternative_title": {
      "description": "list of alternative publication titles",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string"
      }
    },
    "abstract": {
      "description": "list of summaries of the contents of the publication",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string"
      }
    },
    "year": {
      "description": "year of publication",
      "$ref": "#/definitions/year"
    },
    "author": {
      "description": "list of publication authors",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "$ref": "#/definitions/person"
      }
    },
    "editor": {
      "description": "list of editors",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "$ref": "#/definitions/person"
      }
    },
    "promoter": {
      "description": "list of promoters",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "$ref": "#/definitions/person"
      }
    },
    "defense": {
      "description": "dissertation defense info",
      "properties": {
        "date": {
          "description": "date and hour of defense",
          "$ref": "#/definitions/datehour"
        },
        "location": {
          "description": "venue of defense (campus, auditorium, room, ...)",
          "type": "string"
        }
      }
    },
    "parent": {
      "description": "host (journal, book, ...) the publication appeared in",
      "properties": {
        "title": {
          "description": "host title",
          "type": "string"
        },
        "short_title": {
          "description": "host abbreviated title",
          "type": "string"
        }
      }
    },
    "series_title": {
      "description": "title of the series the book chapter appeared in",
      "type": "string"
    },
    "publisher": {
      "description": "publisher info",
      "properties": {
        "location": {
          "description": "place of publication",
          "type": "string"
        },
        "name": {
          "description": "name of publisher",
          "type": "string"
        }
      }
    },
    "conference": {
      "description": "info about the conference the publication is related to",
      "properties": {
        "name": {
          "description": "name of the conference",
          "type": "string"
        },
        "location": {
          "description": "venue of the conference",
          "type": "string"
        },
        "organizer": {
          "description": "name of the organizer of the conference",
          "type": "string"
        },
        "start_date": {
          "description": "start date of the conference",
          "type": "string"
        },
        "end_date": {
          "description": "end date of the conference",
          "type": "string"
        }
      }
    },
    "project": {
      "description": "list of projects the publication is related to",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "properties": {
          "_id": {
            "description": "unique project id",
            "type": "string"
          },
          "title": {
            "description": "project title",
            "type": "string"
          },
          "abstract": {
            "description": "description of the project",
            "type": "string"
          },
          "start_date": {
            "description": "start date of the project",
            "type": "string"
          },
          "end_date": {
            "description": "end date of the project",
            "type": "string"
          },
          "ugent_id": {
            "description": "list of LU person ids related to the project",
            "$ref": "#/definitions/ugent_id"
          },
          "eu_id": {
            "description": "EU reference id of the project",
            "type": "string"
          },
          "eu_acronym": {
            "description": "EU acronym of the project",
            "type": "string"
          },
          "eu_framework_programme": {
            "description": "EU framework programme of the project",
            "type": "string"
          },
          "eu_call_id": {
            "description": "EU call id of the project",
            "type": "string"
          }
        },
        "required": ["_id", "title", "start_date", "end_date"]
      }
    },
    "page": {
      "description": "page info",
      "properties": {
        "count": {
          "description": "total number of pages",
          "type": "string"
        },
        "first": {
          "description": "first page",
          "type": "string"
        },
        "last": {
          "description": "last page",
          "type": "string"
        }
      }
    },
    "volume": {
      "description": "volume number",
      "type": "string"
    },
    "issue": {
      "description": "issue number",
      "type": "string"
    },
    "issue_title": {
      "description": "special issue title",
      "type": "string"
    },
    "article_number": {
      "description": "article number",
      "type": "string"
    },
    "edition": {
      "description": "edition",
      "type": "string"
    },
    "isbn": {
      "description": "list of ISBN identifiers",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string"
      }
    },
    "issn": {
      "description": "list of ISSN identifiers",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string"
      }
    },
    "doi": {
      "description": "list of DOI identifiers",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string"
      }
    },
    "wos_type": {
      "description": "Web of Science type of the publication",
      "enum": [
        "Article",
        "Proceedings Paper",
        "Review",
        "Meeting Abstract",
        "Book Review",
        "Letter",
        "Editorial Material",
        "Conference Paper",
        "Note",
        "Other"
      ]
    },
    "wos_id": {
      "description": "Web of Science id of the publication",
      "type": "string"
    },
    "vabb_type": {
      "description": "type of the publication in the VABB-SHW database",
      "enum": [
        "VABB-1",
        "VABB-2",
        "VABB-3",
        "VABB-4",
        "VABB-5"
      ]
    },
    "vabb_id": {
      "description": "id of the publication in the VABB-SHW database",
      "type": "string"
    },
    "vabb_approved": {
      "description": "is the publication approved by the VABB authoritative panel",
      "enum": [0, 1]
    },
    "alternative_location": {
      "description": "List of links to alternative locations where the publication is also available",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "properties": {
          "title": {
            "description": "link title",
            "type": "string"
          },
          "description": {
            "description": "description of the file",
            "type": "string"
          },
          "url": {
            "description": "link URL",
            "type": "string",
            "format": "uri"
          },
          "access": {
            "description": "link access level",
            "enum": ["open", "restricted"]
          },
          "content_type": {
            "description": "internet media type of the link",
            "type": "string"
          }
        }
      }
    },
    "file": {
      "description": "list of files containing the full-text of the publication or other additional data",
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "properties": {
          "_id": {
            "description": "unique file id",
            "type": "string"
          },
          "content_type": {
            "description": "internet media type of the file",
            "type": "string"
          },
          "name": {
            "description": "filename",
            "type": "string"
          },
          "description": {
            "description": "description of the file",
            "type": "string"
          },
          "access": {
            "$ref": "#/definitions/access"
          },
          "change": {
            "description": "upcoming change in the file access level",
            "properties": {
              "true": {
                "description": "date of upcoming change",
                "$ref": "#/definitions/date"
              },
              "to": {
                "$ref": "#/definitions/access"
              }
            }
          },
          "size": {
            "description": "filesize in bytes",
            "type": "integer",
            "minimum": 1
          }
        },
        "required": ["_id", "content_type", "name", "access"]
      }
    },
    "jcr": {
      "description": "Journal Citation Reports (JCR) info for the publication year of the journal the publication appeared in",
      "properties": {
        "category_vigintile": {
          "description": "best quartile distribution based on impact factor rank in a subject category for the journal",
          "type": "integer",
          "minimum": 1,
          "maximum": 20
        },
        "category_decile": {
          "description": "best decile distribution based on impact factor rank in a subject category for the journal",
          "type": "integer",
          "minimum": 1,
          "maximum": 10
        },
        "category_quartile": {
          "description": "best quartile distribution based on impact factor rank in a subject category for the journal",
          "type": "integer",
          "minimum": 1,
          "maximum": 4
        },
        "total_cites": {
          "description": "total cites indicate the total number of times that each journal has been cited by all journals included in the database within the current JCR year",
          "type": "integer",
          "minimum": 0
        },
        "immediacy_index": {
          "description": "frequency the average article from a journal is cited within the same year as publication",
          "type": "number",
          "minimum": 0
        },
        "impact_factor": {
          "description": "frequency the average article from a journal is cited in a particular year",
          "type": "number",
          "minimum": 0
        },
        "impact_factor_5year": {
          "type": "number",
          "minimum": 0
        },
        "eigenfactor": {
          "type": "number",
          "minimum": 0
        },
        "prev_impact_factor": {
          "description": "impact factor for the previous JCR year",
          "type": "number",
          "minimum": 0
        },
        "prev_category_quartile": {
          "description": "category quartile for the previous JCR year",
          "type": "integer",
          "minimum": 1,
          "maximum": 4
        }
      }
    },
    "source": {
      "description": "provenance info of an imported record",
      "properties": {
        "db": {
          "description": "database the record was imported from",
          "type": "string"
        },
        "id": {
          "description": "source record id",
          "type": "string"
        },
        "record": {
          "description": "source record metadata",
          "type": "string"
        }
      }
    }
  },
  "definitions": {
    "year": {
      "type": "string",
      "pattern": "^\\d{4}$"
    },
    "date": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
    },
    "datehour": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}\\s\\d{2}:\\d{2}$"
    },
    "datetime": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}$"
    },
    "ugent_id": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "additionalItems": false,
      "items": {
        "type": "string",
        "pattern": "^\\d{12}$"
      }
    },
    "person": {
      "properties": {
        "_id": {
          "description": "unique person id",
          "type": "string"
        },
        "ugent_id": {
          "description": "list of LU person ids",
          "$ref": "#/definitions/ugent_id"
        },
        "name": {
          "description": "full name, first name first",
          "type": "string"
        },
        "name_last_first": {
          "description": "full name, last name first",
          "type": "string"
        },
        "first_name": {
          "description": "first name",
          "type": "string"
        },
        "last_name": {
          "description": "last name",
          "type": "string"
        },
        "affiliation": {
          "description": "list of academic affiliations of the person",
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "additionalItems": false,
          "items": {
            "$ref": "#/definitions/affiliation"
          }
        }
      }
    },
    "affiliation": {
      "properties": {
        "ugent_id": {
          "description": "LU organization id",
          "type": "string"
        },
        "path": {
          "description": "list of LU parent organization ids",
          "properties": {
            "ugent_id": {
              "description": "LU organization id",
              "type": "string"
            }
          }
        }
      }
    },
    "access": {
      "description": "file access level",
      "enum": ["openAccess", "lu", "admin"]
    }
  }
}