H.Mohammadi Majd and  M.Jalali Azizpour,  A Study on Barreling Behavior during Upsetting Process using Artificial Neural Networks with Levenberg Algorithm.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2011, vol. 54(6). 841 - 844
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10631.