WASET
    H. V. Chen,  Skolem Sequences and Erdosian Labellings of m Paths with 2 and 3 Vertices.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2010, vol. 38(2). 216 - 219
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/8072.