1. ADL (2004). Advanced distributed learning initiative. Sharable content object reference model (SCORM) 2004, 3rd ed, Overview, ADL Web Site. http://www.adlnet.gov/scorm . Retrieved 10.05.2006.
2. Blaylock, B., & Rees, L. (1984). Cognitive style and the usefulness of information. Decision Science, 15(1), 74–91.
3. DiTiberio, J. (1998). Uses of type in education. MBTI manual: A guide to the development and use of the Myers-Briggs type indicator. Palo Alto: Consulting Psychologists Press.
4. Dorigo, M. (1992). Optimization, learning and natural algorithms. PhD thesis. Italy: Politecnico di Milano.
5. Dorigo, M., & Gambardella, L. M. (1997). Ant colonies for the traveling salesman problem. BioSystems, 43, 73–81.