E. Mike Dison and  T. Pathinathan,  Fuzzy Set Approach to Study Appositives and Its Impact Due to Positional Alterations.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 137(5). 280 - 286
    [viewed 22 January 2022]. Available from: https://publications.waset.org/pdf/10008933.