Farshad Ghassemi Toosi and  Nikola S. Nikolov,  Angular-Coordinate Driven Radial Tree Drawing.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2013, vol. 83(11). 1412 - 1415
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/17324.