WASET
    Hsien-cheng Chou and  Fei-pei Lai and  Hung-chang Lee,  How Efficiency of Password Attack Based on a Keyboard.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2010, vol. 46(10). 1539 - 1546
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/15405.