1. Quantitative Analysis of Culture Using Millions of Digitized Books
2. Thomson-Reutershttp://blog.thomsonreuters.com/index.php/Big%20Data-graphic-of-the-day
3. The Data Warehouse Toolkit: The Complete Guide to Dimensional Modeling;Kimball,2002
4. Where is the Phrase “80% of Data is Geographic”https://www.gislounge.com/80-percent-data-is-geographic/
5. CORINE Land Cover—Part1: Methodologyhttp://www.eea.europa.eu/publications/COR0-part1