Farhad Kolahan and  A. Hamid Khajavi,  Modeling and Optimization of Abrasive Waterjet Parameters using Regression Analysis.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2009, vol. 35(11). 1425 - 1430
    [viewed 28 January 2020]. Available from: https://publications.waset.org/pdf/13339.