The second edition of the book "Roos, Stynes, Tobiska -- Robust Numerical Methods for Singularly Perturbed Differential Equations" appeared many years ago and was for many years a reliable guide into the world of numerical methods for singularly perturbed problems. Since then many new results came into the game, we present some selected ones and the related sources.

翻译：第二版“Roos, Stynes, Tobiska-强健的奇形奇形异形数字方法”一书多年前就出现,多年来,它一直是一个可靠的指南,向世界介绍奇形怪状问题的数字方法。 从那时以来,游戏中出现了许多新的结果,我们展示了一些选定的结果和相关来源。