Nastaran Hajiheydari and  Mohammad Soltani Delgosha,  Extended Intuitionistic Fuzzy VIKOR Method in Group Decision Making: The Case of Vendor Selection Decision.   journal   = {International Journal of Social and Business Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2020, vol. 161(5). 346 - 353
    [viewed 24 October 2021]. Available from: https://publications.waset.org/pdf/10011190.