Abrahamsson, L., Osher, S.: Monotone difference schemes for singularly perturbed problems. SIAM J. Num. Anal.19, 979–992 (1982).
Berger, A. E. et al.: Generalized OCI-schemes for boundary value problems. Math. Comput.35, 695–731 (1980).
Berger, A. E. et al.: An analysis of a uniformly accurate difference method for a singular perturbation problem. Math. Comput.37, 79–94 (1981).
Berger, A. E. et al.: A priori estimates and analysis of a numerical method for a turning point problem. Math. Comput.42, 465–492 (1984).
Doolan, E. P., Miller, J. J. H., Schilders, W. H. A.: Uniform Numerical Methods for Problems with Initial and Boundary Layers. Dublin: Boole Press 1980.
Goering, H. et al.: Singularly perturbed differential equations. Berlin: Akademie-Verlag 1983.
Krätzschmar M.: Iterationsverfahren zur Lösung schwach nichtlinearer elliptischer Randwertaufgaben mit monotoner Lösungseinschließung. Dissertation, TU Dresden 1983.
Leventhal, S.: An operator compact implicit method of exponential type. J. Comput. Ph.46, 138–165 (1983).
Lorenz, J.: Zur Inversmonotonie diskreter Probleme. Num. Math.27, 227–238 (1977).
Lorenz, J.: Nonlinear singular perturbation problems and the Enquist-Osher difference scheme. Report 8115, Nijmegen 1981.
Lorenz, J.: Stability and consistency analysis of difference methods for singular perturbation problems. In: Analytical and Numerical Approaches to Asymptotic Problems in Analysis, pp. 141–156. Amsterdam 1981.
Lorenz, J.: Nonlinear boundary value problems with turning points and properties of difference schemes. Lecture Notes in Math.942, 150–169 (1982).
Lorenz, J.: Numerical solution of a singular perturbation problem with turning points. Lecture Notes in Math. 1027 (1983).
Niijima, K.: A uniformly convergent difference scheme for a semilinear singular perturbation problem. Num. Math.43, 175–198 (1984).
Osher, S.: Nonlinear singular perturbation problems and one sided difference schemes. SIAM J. Num. Anal.18, 129–144 (1981).
Riordan, E.: Singularly perturbed finite element methods. Num. Math.44, 425–434 (1984).
Tobiska, L.: Diskretisierungsverfahren zur Lösung singulär gestörter Randwertprobleme. ZAMM63, 115–123 (1983).
Weiss, R.: An analysis of the box and trapezoidal schemes for linear singularly perturbed boundary value problems. Math. Comput.42, 41–68 (1984).