Swarn Singh, Suruchi Singh and R. K. Mohanty. (2018). A New High Accuracy Off-Step Discretisation for the Solution of 2D Nonlinear Triharmonic Equations.
            <i>East Asian Journal on Applied Mathematics</i>. <i>3</i> (3).
            228-246.
         doi:10.4208/eajam.140713.130813a