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- http://identifiers.org/
- https://en.wikipedia.org/wiki/Crossref
- https://indico.cern.ch/event/405949/contributions/2490466/
- https://wiki.creativecommons.org/wiki/OER_Policy_Registry
- http://www.bpb.de/lernen/digitale-bildung/oer-material-fuer-alle/220548/
- http://educatorinnovator.org/why-connected-learning/
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- http://www.oeconsortium.org/info-center/topic/what-about-research-on-open-education/
- http://www.oeconsortium.org/info-center/
- https://guide.inclusivedesign.ca/activities/InclusiveDesignMapping.html
- https://oersys.org/2016/12/22/four-levels-of-oer-ecosystems/
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- http://jarche.com/2014/11/working-and-learning-out-loud/
- http://oerhub.net/
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- https://upload.wikimedia.org/wikipedia/commons/d/de/Stellungnahme_zum_Entwurf_eines_Gesetzes_zur_Angleichung_des_Urheberrechts_an_die_aktuellen_Erfordernisse_der_Wissensgesellschaft_(Urheberrechts-Wissensgesellschafts-Gesetz_–_UrhWissG).pdf
- https://www.openeducationeuropa.eu/en/project/oerup
- https://www.openeducationeuropa.eu/en
- http://dspace.ou.nl/handle/1820/7093
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- http://pbsloep.nl/
- http://dspace.ou.nl/
- http://dspace.ou.nl/handle/1820/2255
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- https://www.ou.nl/web/english/courses-in-english