Visualizing freely available citation data using VOSviewer

Among official DOI registration agencies, CrossRef specializes in scholarly and professional publications and it assigns DOI prefixes to publishers. The latter can thus identify articles or book chapters with DOIs. They are also strongly encouraged to create DOIs for journal titles

Work{institution#/definitions/WorkInstitutionWorkInstitution{...}indexed*#/definitions/DateDate{...}posted#/definitions/DatePartsDateParts{...}publisher-locationstringupdate-to[...]standards-body[...]edition-numberstringgroup-title[...]reference-count*integer($int64)publisher*stringissuestringisbn-type[...]license[...]funder[...]content-domain*#/definitions/WorkDomainWorkDomain{...}chair[...]short-container-titlestringaccepted#/definitions/DatePartsDateParts{...}content-updated#/definitions/DatePartsDateParts{...}published-print#/definitions/DatePartsDateParts{...}abstractstringDOI*stringThe DOI identifier associated with the work type*stringcreated*#/definitions/DateDate{...}approved#/definitions/DatePartsDateParts{...}pagestringupdate-policystringsource*stringis-referenced-by-count*integer($int64)title*[...]prefix*stringvolumestringclinical-trial-number[...]author*[...]member*stringcontent-created#/definitions/DatePartsDateParts{...}published-online#/definitions/DatePartsDateParts{...}reference#/definitions/ReferenceReference{...}container-title[...]review#/definitions/WorkReviewWorkReview{...}original-title[...]languagestringlink[...]deposited*#/definitions/DateDate{...}score*integer($int64)degreestringsubtitle[...]translator[...]free-to-read#/definitions/WorkFreeToReadWorkFreeToRead{...}editor[...]component-numberstringshort-title[...]issued*#/definitions/DatePartsDateParts{...}ISBN[...]references-count*integer($int64)part-numberstringjournal-issue#/definitions/WorkJournalIssueWorkJournalIssue{...}alternative-id[...]URL*stringarchive[...]relation#/definitions/WorkRelationWorkRelation{...}ISSN[...]issn-type[...]subject[...]published-other#/definitions/DatePartsDateParts{...}published#/definitions/DatePartsDateParts{...}assertion[...]subtypestringarticle-numberstring}

Behind the scenes improvements to the REST API Patrick Polischuk – 2021 July 06 In REST APICommunity UPDATE, 24 August 2021: All pools have been migrated to the new Elasticsearch-backed API, which already appears to be more stable and performant than the outgoing Solr API. Please report any issues via our Crossref issue repository in Gitlab.

DOI registration agencies such as Crossref, DataCite and mEDRA collect bibliographic metadata about the works they link to.

More recently, there has been a strong movement to move the web over from HTTP to the more secure HTTPS protocol. Technical changes also made it possible to link DOIs via the shorter doi.org instead of dx.doi.org. Together, this let Crossref change its recommended format to https://doi.org/10.1037/rmh0000008.

As Crossref explains in their guidelines, the original concise doi:10.1037/rmh0000008 format was recommended with the hope that web browsers would one day automatically recognize and hyperlink these DOIs.

Effective March 2017, Crossref, an influential DOI registration agency, now recommends the following format: https://doi.org/10.1037/rmh0000008 Note the use of “https” instead of “http”, and “doi.org” instead of “dx.doi.org”.

Crossref, an influential DOI registration agency

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