%0 Journal Article
%A Z. 

 Uzelac
%A K. Surla
%T A 

 higher order approximation to a singular perturbation problem
%J Novi Sad Journal of Mathematics
%D 1998
%P 19-31
%V 28
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_1998_28_2a_2/
%F NSJOM_1998_28_2a_2