@article{RM_1994_49_4_a0,
     author = {S. M. Pergamenshchikov},
     title = {Asymptotic expansions for a model with distinguished {\textquotedblleft}fast{\textquotedblright} and {\textquotedblleft}slow{\textquotedblright} variables, described by a~system of singularly perturbed stochastic differential equations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--44},
     year = {1994},
     volume = {49},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1994_49_4_a0/}
}