An optimal uniformly convergent oci difference scheme for a singular perturbation problem. - Katarina Surla; Zorica Uzelac (Int. J. Comput. Math., 1990)

An analysis of a uniformly accurate spline difference method. - Zorica Uzelac; Katarina Surla (Int. J. Comput. Math., 1999)

A robust layer-resolving spline collocation method for a convection-diffusion problem. - Katarina Surla; Ljiljana Teofanov; Zorica Uzelac (Appl. Math. Comput., 2009)

The discrete minimum principle for quadratic spline discretization of a singularly perturbed problem. - Katarina Surla; Zorica Uzelac; Ljiljana Teofanov (Math. Comput. Simul., 2009)