@article{SM_1987_57_2_a1,
     author = {S. M. Kozlov},
     title = {Averagind of difference schemes},
     journal = {Sbornik. Mathematics},
     pages = {351--369},
     publisher = {mathdoc},
     volume = {57},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1987_57_2_a1/}
}