Ali Jabbar Ouda Al-Nasrawi 2026. An Adaptive Coordinate-Stretched Spectral Collocation–QLM Scheme for Singularly Perturbed Boundary-Layer Problems. Journal of Al-Qadisiyah for Computer Science and Mathematics. 18, 1 (Mar. 2026), Math 122–135. DOI:https://doi.org/10.29304/jqcsm.2026.18.12524.