1. Robust Computational Techniques for Boundary Layers;Farrell,2000
2. Numerical Methods for Singularly Perturbed Differential Equations;Roos,1996
3. Fitted Numerical Methods for Singular Perturbation Problems;Miller,1996
4. Singular-Perturbation Theory an Introduction with Applications;Smith,2009
5. Numerical Solution of Convection–Diffusion Problems;Morton,1996