@article{DE_2006_42_7_a3, author = {V. B. Andreev}, title = {On the accuracy of grid approximations to nonsmooth solutions of a singularly perturbed reaction-diffusion equation in the square}, journal = {Differencialʹnye uravneni\^a}, pages = {895--906}, publisher = {mathdoc}, volume = {42}, number = {7}, year = {2006}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2006_42_7_a3/} }