Wongsakorn Charoenpanitseri,  Total Chromatic Number of Δ-Claw-Free 3-Degenerated Graphs.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 136(4). 75 - 78
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10008947.