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Source object
These are the fields in a source object. When you use the API to get a single source or lists of sources, this is what's returned.
abbreviated_title: "J. addict. med. ther. sci."
Array: Alternate titles for this source, as obtained from the ISSN Centre and individual work records, like Crossref DOIs, that carry the source name as a string. These are commonly abbreviations or translations of the source's canonical name.
alternate_titles: [
"ACRJ"
]
List: List of objects, each with
price (Integer) and currency (String).apc_prices: [
{
price: 3920,
currency: "GBP"
}
]
The
apc_usd value is calculated by taking the APC price (see apc_prices) with a currency of USD if it is available. If it's not available, we convert the first available value from apc_prices into USD, using recent exchange rates.apc_usd: 5200
cited_by_count: 133702
String: The country that this source is associated with, represented as an ISO two-letter country code.
country_code: "GB"
List:
works_count and cited_by_count for each of the last ten years, binned by year. To put it another way: each year, you can see how many new works this source started hosting, and how many times any work in this source got cited.If the source was founded less than ten years ago, there will naturally be fewer than ten years in this list. Years with zero citations and zero works have been removed so you will need to add those in if you need them.
counts_by_year: [
{
year: 2021,
works_count: 4338,
cited_by_count: 127268
},
{
year: 2020,
works_count: 4363,
cited_by_count: 119531
},
// and so forth
]
String: The date this
Source object was created in the OpenAlex dataset, expressed as an ISO 8601 date string.created_date: "2017-08-08"
String: The name of the source.
display_name: "PeerJ"
String: The starting page for navigating the contents of this source; the homepage for this source's website.
homepage_url: "http://www.peerj.com/"
String: The host organization for this source as an OpenAlex ID. This will be an
Institution.id if the source is a repository, and a Publisher.id if the source is a journal, conference, or eBook platform (based on the type field).id: "https://openalex.org/P4310320595"
List: OpenAlex IDs — See
Publisher.lineage. This will only be included if the host_organization is a publisher (and not if the host_organization is an institution).host_organization_lineage: [
"https://openalex.org/P4310321285",
"https://openalex.org/P4310319900",
"https://openalex.org/P4310319965"
]
host_organization_name: "Elsevier BV"
id: "https://openalex.org/S1983995261"
Object: All the external identifiers that we know about for this source. IDs are expressed as URIs whenever possible. Possible ID types:
Many sources are missing one or more ID types (either because we don't know the ID, or because it was never assigned). Keys for null IDs are not displayed.
is_in_doaj: true
We say "currently" because the status of a source can change over time. It's common for journals to "flip" to Gold OA, after which they may make only future articles open or also open their back catalogs. It's entirely possible for a source to say
is_oa: true, but for an article from last year to require a subscription.is_oa: true
issn: ["2167-8359"]
ISSN is a global and unique ID for serial publications. However, different media versions of a given publication (e.g., print and electronic) often have different ISSNs. This is why we can't have nice things. The ISSN-L or Linking ISSN solves the problem by designating a single canonical ISSN for all media versions of the title. It's usually the same as the print ISSN.
issn_l: "2167-8359"
Array: Societies on whose behalf the source is published and maintained, obtained from our crowdsourced list. Thanks!
societies: [
{
"url": "http://www.counseling.org/",
"organization": "American Counseling Association on behalf of the American College Counseling Association"
}
]
Object: Citation metrics for this source
2yr_mean_citednessFloat: The 2-year mean citedness for this source. Also known as impact factor. We use the year prior to the current year for the citations (the numerator) and the two years prior to that for the citation-receiving publications (the denominator).
While the h-index and the i-10 index are normally author-level metrics, they can be calculated for any set of papers, so we include them for sources.
summary_stats: {
2yr_mean_citedness: 1.5295340589458237,
h_index: 105,
i10_index: 5045
}
String: The type of source, which will be one of:
journal, repository, conference, ebook platform, or book series.type: "journal"
String: The last time anything in this
Source object changed, expressed as an ISO 8601 date string. This date is updated for any change at all, including increases in various counts.updated_date: "2022-01-02T00:00:00"
String: A URL that will get you a list of all this source's
Works.We express this as an API URL (instead of just listing the works themselves) because sometimes a source's publication list is too long to reasonably fit into a single
Source object.works_api_url: "https://api.openalex.org/works?filter=primary_location.source.id:S1983995261",
works_count: 20184
The "x" in
x_concepts is because it's experimental and subject to removal with very little warning. We plan to replace it with a custom link to the Concepts API endpoint.List: The
Concepts most frequently applied to works hosted by this source. Each is represented as a dehydrated Concept object, with one additional attribute:score (Float): The strength of association between this source and the listed concept, from 0-100.x_concepts: [
{
id: "https://openalex.org/C86803240",
wikidata: null,
display_name: "Biology",
level: 0,
score: 86.7
},
{
id: "https://openalex.org/C185592680",
wikidata: null,
display_name: "Chemistry",
level: 0,
score: 51.4
},
// and so forth
]
The
DehydratedSource is stripped-down Source object, with most of its properties removed to save weight. Its only remaining properties are:Last modified 22d ago