Ahmad Salehi, The More Organized Proof For Acyclic Coloring Of Graphs With Δ = 5 with 8 Colors. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. January 2010, vol. 37(1). 65 - 68 [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/5346.