Elias K. Maragos and  Petros E. Maravelakis,  Improving the Analytical Power of Dynamic DEA Models, by the Consideration of the Shape of the Distribution of Inputs/Outputs Data: A Linear Piecewise Decomposition Approach.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2018, vol. 138(6). 106 - 110
    [viewed 22 January 2022]. Available from: https://publications.waset.org/pdf/10009087.