Marcel Shirvanian and  Wolfram Lippe,  Determination of Adequate Fuzzy Inequalities for their Usage in Fuzzy Query Languages.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2008, vol. 22(10). 728 - 734
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/8014.