TY - JOUR AU - G. I. Shishkin TI - Grid approximation of singularly perturbed parabolic equations with piecewise continuous initial-boundary conditions JO - Trudy Instituta matematiki i mehaniki PY - 2007 SP - 218 EP - 233 VL - 13 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_2007_13_2_a17/ LA - ru ID - TIMM_2007_13_2_a17 ER -