Khaled M. Khader and  Mamdouh I. Elimy ,  Power and Wear Reduction Using Composite Links of Crank-Rocker Mechanism with Optimum Transmission Angle .   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2018, vol. 133(1). 42 - 48
    [viewed 19 January 2022]. Available from: https://publications.waset.org/pdf/10008452.