Ivan C. Mustakerov and  Daniela I. Borissova,  Data Structures and Algorithms of Intelligent Web-Based System for Modular Design.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 876 - 881
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/16266.