Muhammad F. Yaqub and  Iqbal Gondal and  Joarder Kamruzzaman,  Multiple-Points Fault Signature's Dynamics Modeling for Bearing Defect Frequencies.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 2541 - 2546
    [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/15172.