@article{DAN_1975_222_3_a13,
     author = {V. L. Berdichevsky},
     title = {Spatial averaging of periodic structures},
     journal = {Doklady Akademii Nauk},
     pages = {565--567},
     publisher = {mathdoc},
     volume = {222},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_222_3_a13/}
}