@article{TIMM_2003_9_2_a13,
     author = {G. I. Shishkin},
     title = {An improved piecewise uniform mesh for a~singularly perturbed elliptic reaction-diffusion equation},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {172--179},
     year = {2003},
     volume = {9},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2003_9_2_a13/}
}