M.H.Aziz and  Erik L.J.Bohez and  Manukid Parnichkun and  Chanchal Saha,  Classification of Fuzzy Petri Nets, and Their Applications.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2010, vol. 48(12). 1985 - 1992
    [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/6540.