Yildirim, Ozgur. “On the Unique Weak Solvability of Second-Order Unconditionally Stable Difference Scheme for the System of Sine-Gordon Equations”. Nonlinear Analysis: Modelling and Control 29, no. 2 (January 15, 2024): 244–264. Accessed May 16, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/34196.