1. K. Roebuck, Big Data: High-Impact Strategies—What You Need to Know: Definitions, Adoptions, Impact, Benefits, Maturity, Vendors, Emereo Pty Limited, 2011.
2. C. Strauch, Nosql Databases. Lecture Selected Topics on Software-Technology Utra-Large Scale Sites, Manuscript, Lecture Notes, Stuttgart Media University, 2011.
3. J. Han, Olap mining: an integration of olap with data mining, in: Proceedings of the 7th IFIP 2.6 Working Conference on Database Semantics (DS-7).
4. Twitter Team, Twitter Turns Six, 2012.
5. R. Krikorian, Developing for @twitterapi (techcrunch disrupt hackathon), 2012.