PKP and Crossref collaborate to help publishers and journals using Open Journal Systems (OJS) take better advantage of Crossref services. In 2014, PKP became a Sponsoring Organization of Crossref, providing improved Crossref integration and overall support for the service. Additionally, PKP can now act as a sponsor representative for OJS journals wishing to apply for Crossref membership and is, in some cases, able to waive fees.
PKP is continually working with Crossref to improve the level of overall DOI export support provided within OJS. OJS has included a simple manual export plugin for several years; this plugin has supplemented with the following features:
Crossref and PKP have formed a working group to review existing integrations and metadata. Stay tuned to the PKP blog for further announcements and news regarding Crossref.