The structure of spline collocation matrix for singularly perturbation problems with two small parameters. Surla, Katarina; Teofanov, Ljiljana; Uzelac, Zorica — 2005 Novi Sad Journal of Mathematics
On collocation methods for singular perturbation problems of convection-diffusion type. Surla, Katarina; Teofanov, Ljiljana; Uzelac, Zorica — 2001 Novi Sad Journal of Mathematics
Minimum principle for quadratic spline collocation discretization of a convection-diffusion problem Katarina Surla; Zorica Uzelac; Ljiljana Teofanov — 2007 Kragujevac Journal of Mathematics