GeoDCAT-AP: A geospatial extension for the DCAT application profile for data portals in Europe v1.0.1, https://joinup.ec.europa.eu/node/154143/
ISA Programme Location Core Vocabulary, https://www.w3.org/ns/locn
OGC Geography Markup Language (GML) - Extended schemas and encoding rules, OGC document number 10-129r1
OWL 2 Web Ontology Language, Structural Specification and Functional-Style Syntax (Second Edition), W3C Recommendation 11 December 2012, http://www.w3.org/TR/owl2-syntax/
OpenGIS Implementation Standard for Geographic information - Simple feature access - Part 1: Common architecture, OGC document number 06-103r4, http://portal.opengeospatial.org/files/?artifact_id=25355
RDF 1.1 Concepts and Abstract Syntax, http://www.w3.org/TR/rdf11-concepts/
W3C RDF Schema 1.1, https://www.w3.org/TR/rdf-schema/