%0 Journal Article %A G. I. Shishkin %T Grid approximation of singularly perturbed parabolic equations with piecewise continuous initial-boundary conditions %J Trudy Instituta matematiki i mehaniki %D 2007 %P 218-233 %V 13 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2007_13_2_a17/ %G ru %F TIMM_2007_13_2_a17