O. Poleshchuk and  E. Komarov,  The Determination of Rating Points of Objects with Qualitative Characteristics and their Usagein Decision Making Problems.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2009, vol. 28(4). 945 - 949
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/13326.