TY - JOUR AU - G. I. Shishkin TI - Optimization of piecewise-uniform grids for singularly perturbed equations of reaction-diffusion type JO - Differencialʹnye uravneniâ PY - 1999 SP - 990 EP - 997 VL - 35 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1999_35_7_a16/ LA - ru ID - DE_1999_35_7_a16 ER -