TY - BOOK AU - Roos, H.G. AU - Stynes, M. AU - Tobiska, L. TI - Numerical methods for singularly perturbed differential equations: convection-diffusion and flow problems SN - 3540607188 U1 - 515.354 PY - 1966/// CY - Berlin PB - Springer-Verlag KW - Singularly Perturbed Differential Equations ER -