Kiyoshi Sawada and  Takashi Mitsuishi,  Adding Edges between One Node and Every Other Node with the Same Depth in a Complete K-ary Tree.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2009, vol. 26(2). 169 - 171
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/15622.