@article{ZVMMF_2007_47_5_a6,
     author = {G. I. Shishkin},
     title = {Approximation of systems of singularly perturbed elliptic reaction-diffusion equations with two parameters},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {835--866},
     publisher = {mathdoc},
     volume = {47},
     number = {5},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2007_47_5_a6/}
}