Unconditionally Maximum-Principle-Preserving Parametric Integrating Factor Two-Step Runge-Kutta Schemes for Parabolic Sine-Gordon Equations. CSIAM-AM [Internet]. 2023 Jan. 9 [cited 2025 Dec. 6];4(1):177-224. Available from: https://global-sci.com/index.php/csiam-am/article/view/7826