Gaurav Kumar and  Rakesh Kumar Bajaj,  On Solution of Interval Valued Intuitionistic Fuzzy Assignment Problem Using Similarity Measure and Score Function.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2014, vol. 88(4). 715 - 720
    [viewed 25 September 2020]. Available from: https://publications.waset.org/pdf/9998707.