4Big Data for Development: Challenges & Opportunities [DB/OL]. [2012-05-01]. http://www.unglobalpulse.org/sites/default/files/Big- DataforDevelopment-UNGlobalPulseJune2012.pdf.
5Big Data Research and Development Initiative[DB/OL].[2012-03-29] . http://www.whitehouse.gov/sites/defaultlfiles/microsites/ostp/big_data_ press_release_final_2.pdf.
6Enhancing Teaching and Learning through Educational Data Mining and Learning Analyties [DB/OL]. [2012-10-12]. http:// www.ed.gov/edblogs/technology/files/2012/03/edm-la-brief.pdf.
7Big data-Wikipedia, the free encyclopedia [EB/OL].[2013-09-23]. http://en.wikipedia.org/wiki/Big_data.
8Barwick H. The "four Vs" of Big Data. Implementing Information In- fi'astructure Symposium[EB/OL]. [2012-10-02]. http://www.computer- world.com.au/article/396198/iiis four vs_big_data/.
9Manyika. J. Big data: The next frontier for innovation, competition, and productivity [EB/OL]. [2011-05-12]. http://www.mckinsey.com/ insights/business_technology/big_data the next frontier for innova- tion.
10Siemens, G. Learning and Knowledge Analytics -Knewton -the future of education? [EB/OL]. [2011-04-14]. http://www.learninganalytics. net/?p=126.
