1. O’reilly, T.: What is web 2.0: design patterns and business models for the next generation of software. Commun. Strateg. 1(1), 17 (2007)
2. Fox, E.A., Leidig, J.P.: Digital Libraries Applications: CBIR, Education, Social Networks, eScience/Simulation, and GIS, vol. 6. Morgan & Claypool Publishers, San Rafael (2014)
3. Fox, E.A., da Silva Torres, R.: Digital Library Technologies: Complex Objects, Annotation, Ontologies, Classification, Extraction, and Security, vol. 6. Morgan & Claypool Publishers, San Rafael (2014)
4. Shen, R., Goncalves, M.A., Fox, E.A.: Key Issues Regarding Digital Libraries: Evaluation and Integration, vol. 5. Morgan & Claypool Publishers, San Rafael (2013)
5. IDEAL. Integrated Digital Event Archive and Library. Accessed: 2016-07-26