WASET
    L. Zehtaban and  D. Roller,  Systematic Functional Analysis Methods for Design Retrieval and Documentation.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 1711 - 1716
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/3451.