@article{ZVMMF_2009_49_5_a6,
     author = {G. I. Shishkin and L. P. Shishkina},
     title = {Finite difference schemes for the singularly perturbed reaction-diffusion equation in the case of spherical symmetry},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {840--856},
     publisher = {mathdoc},
     volume = {49},
     number = {5},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_5_a6/}
}