WASET
    M. Zareiee and  A. Dideban and  P. Nazemzadeh,  From Forbidden States to Linear Constraints.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 97 - 103
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/2639.