@article{DAN_1962_144_3_a9,
     author = {M. I. Freidlin},
     title = {A {Dirichlet} problem for an equation with a small parameter and discontinuous coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {501--504},
     publisher = {mathdoc},
     volume = {144},
     number = {3},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_3_a9/}
}