Chen, Yongtang, and Qi Wang. “Convergence and Stability of Galerkin Finite Element Method for Hyperbolic Partial Differential Equation With Piecewise Continuous Arguments of Advanced Type”. Mathematical Modelling and Analysis 28, no. 3 (September 4, 2023): 434–458. Accessed December 2, 2024. https://mma.vgtu.lt/index.php/MMA/article/view/16677.