@article{SM_1984_49_1_a1,
     author = {A. L. Piatnitski},
     title = {Averaging a~singularly perturbed equation with rapidly oscillating coefficients in a~layer},
     journal = {Sbornik. Mathematics},
     pages = {19--40},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1984_49_1_a1/}
}