Md. Alal Hosen,  Analytical Based Truncation Principle of Higher-Order Solution for a x1/3 Force Nonlinear Oscillator.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2013, vol. 75(3). 549 - 554
    [viewed 07 May 2024]. Available from: https://publications.waset.org/pdf/9996750.