1. C. Aggarwal. Data Streams: Models and Algorithms, Springer, 2007.
2. C. Aggarwal. Social Network Data Analytics, Springer, 2011.
3. R. A. Baeza-Yates, B. A. Ribeiro-Neto, Modern Information Retrieval - the concepts and technology behind search, Second edition, Pearson Education Ltd., Harlow, England, 2011.
4. S. Chakrabarti, B. Dom, P. Indyk. Enhanced Hypertext Categorization using Hyperlinks, ACM SIGMOD Conference, 1998.
5. W. B. Croft, D. Metzler, T. Strohma, Search Engines - Information Retrieval in Practice, Pearson Education, 2009.