Shimal Das and  Dibyendu Ghoshal,  The Effect of Directional Search Using Iterated Functional System for Matching Range and Domain Blocks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2016, vol. 112(4). 805 - 809
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10005392.