Peter Burggräf and  Matthias Dannapfel and  Hanno Voet and  Patrick-Benjamin Bök and  Jérôme Uelpenich and  Julian Hoppe,  Digital Transformation of Lean Production: Systematic Approach for the Determination of Digitally Pervasive Value Chains.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2017, vol. 130(10). 2476 - 2485
    [viewed 07 August 2020]. Available from: https://publications.waset.org/pdf/10008077.