1. V. B. Andreev, On the uniform convergence of a classical difference scheme on an irregular grid for the one-dimensional singularly perturbed reaction-diffusion equation, Comput. Math. Math. Phys., 44(3) (2004), pp. 449–464.
2. N. S. Bakhvalov, Towards optimization of methods for solving boundary value problems in the presence of boundary layers, Zh. Vychisl. Mat. Mat. Fiz., 9 (1969), pp. 841–859. In Russian.
3. N. V. Kopteva, Maximum norm a posteriori error estimates for a one-dimensional singularly perturbed semilinear reaction-diffusion problem, IMA J. Numer. Anal., in press.
4. T. Linß, Sufficient conditions for uniform convergence on layer-adapted meshes for one-dimensional reaction-diffusion problems, Numer. Algorithms, 40(1) (2005), pp. 23–32.
5. T. Linß and N. Madden, A finite element analysis of a coupled system of singularly perturbed reaction-diffusion equations, Appl. Math. Comput., 148(4) (2004), pp. 869–880.