Benshi Zhu,  Positive Solutions for Discrete Third-order Three-point Boundary Value Problem.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    December 2011, vol. 60(12). 2093 - 2096
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/7742.