<https://www.eea.europa.eu/is/umhverfis-teikn/umhverfisteikn-2011#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.eea.europa.eu/is/umhverfis-teikn/umhverfisteikn-2011/greinar/fra-namavinnslu-yfir-i-urgang>