%0 Journal Article %A G. I. Shishkin %T An improved piecewise uniform mesh for a singularly perturbed elliptic reaction-diffusion equation %J Trudy Instituta matematiki i mehaniki %D 2003 %P 172-179 %V 9 %N 2 %U http://geodesic.mathdoc.fr/item/TIMM_2003_9_2_a13/ %G ru %F TIMM_2003_9_2_a13