WASET
    Konstantinos C. Giotopoulos and  Christos E. Alexakos and  Grigorios N. Beligiannis and  Spiridon D.Likothanassis,  Computational Intelligence Techniques and Agents- Technology in E-learning Environments.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2008, vol. 22(10). 3634 - 3643
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/5888.