K. Ben Khalifa and  M.H. Bédoui and  M. Dogui and  F. Alexandre,  Alertness States Classification By SOM and LVQ Neural Networks .   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2007, vol. 3(3). 756 - 759
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/15040.