Čiegis, Raimondas, and Olga Štikoniene. “On Uniform in Time Error Estimates for Investigation of Nonlinear Difference Schemes”. Mathematical Modelling and Analysis 2, no. 1 (December 15, 1997): 48-60. Accessed December 22, 2024. https://jeelm.vgtu.lt/index.php/MMA/article/view/10011.