Ng Yee Luon and  Mohd Zamri Yusoff and  Norshah Hafeez Shuaib,  Development of Improved Three Dimensional Unstructured Tetrahedral Mesh Generator.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2009, vol. 34(10). 788 - 795
    [viewed 20 January 2020]. Available from: https://publications.waset.org/pdf/8054.