Bullo TA, Degla GA, Duressa GF. A parameter-uniform finite difference scheme for singularly perturbed parabolic problem with two small parameters. TECM [Internet]. 2021 Oct. 9 [cited 2024 Nov. 16];30(2-3):197-222. Available from: https://journals.riverpublishers.com/index.php/EJCM/article/view/7103