ALURRFI, K. A. E. Exact Travelling Wave Solutions of the Nonlinear Klein-Gordon Equation Using the Modified Tanh-Function Expansion Method and a Direct Approach. The Libyan Journal of Science, [S. l.], v. 28, n. 1, 2025. Disponível em: https://journals.uot.edu.ly/index.php/ljs/article/view/1144. Acesso em: 2 jun. 2026.