@article{AA_2008_20_6_a1,
     author = {M. Sh. Birman and T. A. Suslina},
     title = {Operator error estimates in the homogenization problem for nonstationary periodic equations},
     journal = {Algebra i analiz},
     pages = {30--107},
     publisher = {mathdoc},
     volume = {20},
     number = {6},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2008_20_6_a1/}
}