1. NASA: SeaWIFS Project (Goddard Space Flight Center, Greenbelt 2010),
http://seawifs.gsfc.nasa.gov/OCEAN_PLANET/HTML/knowledge_stick_chart.html
2. R. Sussma: LIO-OPS Enterprise Metadata Strategy – as Mapped to Land Information Ontario (LIO) (Land information Ontario, Hamilton 2003), Revised July 25, 2003
3. IEEE Computer Society: IEEE Standard Computer Dictionary (IEEE, New York 1991)
4. D. Danko: Geospatial metadata and interoperability. In: Encyclopedia of GIS, ed. by S. Shekhar, H. Xiong (Springer, New York 2008)
5. ISO: ISO 19115:2003 Geographic information – Metadata (International Organization for Standardization, Geneva 2003)