Roja, J. Christy, and Ayyadurai Tamilselvan. “An Overlapping Schwarz Method for Singularly Perturbed Fourth-Order Convection-diffusion Type”. Mathematical Modelling and Analysis 25, no. 4 (October 13, 2020): 661-679. Accessed May 15, 2021. https://journals.vgtu.lt/index.php/MMA/article/view/10517.