1. Singular Perturbation Methods for Ordinary Differential Equations;O'Malley,1991
2. Uniform Numerical Methods for Problems with Initial and Boundary Layers;Doolan,1980
3. Numerical Methods for Singularly Perturbed Differential Equations;Roos,1996
4. Fitted Numerical Methods for Singular Perturbation Problems;Miller,1996
5. A computational method for solving singularly perturbed turning point problems exhibiting twin boundary layers;Natesan;Applied Mathematics and Computation,1998