P. Beraldi and  M. E. Bruni,  Data Envelopment Analysis under Uncertainty and Risk.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 811 - 816
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/11764.