Eva Eggeling and  Dieter W. Fellner and  Torsten Ullrich,  Probability of Globality.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 36 - 40
    [viewed 21 September 2021]. Available from: https://publications.waset.org/pdf/6040.