<ref name="glossary.eea">{{Internetquellecite web | url=http://glossary.eea.europa.eu/EEAGlossary/C/Common_Database_on_Designated_Areas | titeltitle=Environmental Terminology and Discovery Service | hrsgpublisher=European Environment Agency | zugriffaccess-date=2012-07-17}}
</ref>
<ref name="dd.eionet">{{Internetquellecite web | url=http://dd.eionet.europa.eu/datasets/2445 | titeltitle=Eionet Data Dictionary. View dataset definition: CDDA | hrsgpublisher=European Environment Agency | zugriffaccess-date=2012-07-17}}
</ref>
<ref name="bd.eionet">{{Internetquellecite web | url=http://bd.eionet.europa.eu/activities/products/cdda | titeltitle=EUNIS-sites: Common Database on Designated Areas | hrsgpublisher=Eionet - European Topic Centre on Biological Diversity | zugriffaccess-date=2012-07-17}}
</ref>
<ref name="EUNIS">{{Internetquellecite web | url=http://eunis.eea.europa.eu/ | titeltitle=Welcome to EUNIS biodiversity database - find species, habitats and sites across Europe | hrsgpublisher=European Environment Agency | zugriffaccess-date=2012-07-17}}
</ref>
<ref name="MAIA">{{Internetquellecite web | url=http://www.maia-network.org/homepage/marine_protected_areas/an_ongoing_process | titeltitle=An ongoing process | hrsgpublisher=MAIA | zugriffaccess-date=2015-06-02}}</ref>