@article{ZVMMF_2010_50_4_a5, author = {G. I. Shishkin and L. P. Shishkina}, title = {A conservative difference scheme for a singularly perturbed elliptic reaction-diffusion equation: approximation of solutions and derivatives}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {665--678}, publisher = {mathdoc}, volume = {50}, number = {4}, year = {2010}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_2010_50_4_a5/} }