@article{ZVMMF_1997_37_1_a9,
     author = {A. B. Vasil'eva},
     title = {Contrast structures for a system of singularly perturbed equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {74--84},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1997_37_1_a9/}
}