Atilla Akpinar and  Basri Celik and  Suleyman Ciftci,  On 6-Figures in Finite Klingenberg Planes of Parameters (p2k-1, p) .   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2009, vol. 35(11). 1030 - 1034
    [viewed 24 January 2020]. Available from: https://publications.waset.org/pdf/10853.