WASET
    H. K. Sachidananda and  K. Raghunandana and  B. Shivamurthy,  Comparison of Meshing Stiffness of Altered Tooth Sum Spur Gear Tooth with Different Pressure Angles.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 110(2). 334 - 340
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10003762.