Chen Wu and  Lijuan Wang,  Studies on Properties of Knowledge Dependency and Reduction Algorithm in Tolerance Rough Set Model.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 123(3). 414 - 419
    [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/10008467.