@article{DAN_1981_260_3_a0,
     author = {V. V. Zhikov and S. M. Kozlov and O. A. Oleinik},
     title = {Theorems on the averaging of parabolic operators},
     journal = {Doklady Akademii Nauk},
     pages = {521--525},
     publisher = {mathdoc},
     volume = {260},
     number = {3},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_3_a0/}
}