UDDIN, M., A. HUSSAIN, S. HAQ, and A. ALI. “RBF Meshless Method of Lines for the Numerical Solution of Nonlinear Sine-Gordon Equation”. Walailak Journal of Science and Technology (WJST), vol. 11, no. 4, Oct. 2013, pp. 349-60, https://wjst.wu.ac.th/index.php/wjst/article/view/252.