WASET
    E.V. Butilă and  F. Gîrbacia,  Expert System for Chose Material used Gears.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2011, vol. 55(7). 1257 - 1259
    [viewed 10 May 2024]. Available from: https://publications.waset.org/pdf/10356.