WASET
    Marko A. Rodriguez,  Mapping Semantic Networks to Undirected Networks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2009, vol. 33(9). 2297 - 2300
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/9658.