WASET
    Omar D. Mohammed and  Matti Rantatalo and  Uday Kumar,  Analytical Crack Propagation Scenario for Gear Teeth and Time-Varying Gear Mesh Stiffness.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 1544 - 1549
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/8013.