1. Das, S., Cyganiak, R., Sundara, S.: R2RML: RDB to RDF mapping language. W3C recommendation, W3C (2012). https://www.w3.org/TR/2012/REC-r2rml-20120927/
2. Dimou, A., Sande, M.V., Colpaert, P., Verborgh, R., Mannens, E., de Walle, R.V.: RML: A generic language for integrated RDF mappings of heterogeneous data. In: LDOW (2014)
3. Heery, R., Patel, M.: Application profiles: mixing and matching metadata schemas. Ariadne 25 (2000). http://www.ariadne.ac.uk/issue/25/app-profiles/
4. Kontokostas, D., Knublauch, H.: Shapes constraint language (SHACL). W3C recommendation, W3C (2017). https://www.w3.org/TR/2017/REC-shacl-20170720/
5. Nagamori, M., Kanzaki, M., Torigoshi, N., Sugimoto, S.: Meta-bridge: a development of metadata information infrastructure in Japan. In: Proceedings International Conference on Dublin Core and Metadata Applications 2011, p. 6 (2011)