opendoar - SERP Analysis

https://opendoar.ac.uk/

https://www.jisc.ac.uk/opendoar

https://en.wikipedia.org/wiki/OpenDOAR

https://www.loc.gov/item/2008446647/

https://opendoar.ac.uk/search

https://libguides.ials.sas.ac.uk/az/opendoar-directory-of-open-access-repositories

https://v2.sherpa.ac.uk/view/repository_by_country/

https://openeconomics.zbw.eu/en/knowledgebase/directory-of-open-access-repositories-opendoar/

https://www.jisc.ac.uk/forms/register-your-repository-in-opendoar

https://coar-repositories.org/news-updates/new-roadmap-lays-out-path-for-opendoar-as-an-international-community-driven-repository-directory/

https://ieeexplore.ieee.org/document/8485265/