@article{DAN_1989_306_6_a17,
     author = {L. N. Germanovich},
     title = {Effective characteristics of a medium with inclusions in a},
     journal = {Doklady Akademii Nauk},
     pages = {1356--1362},
     publisher = {mathdoc},
     volume = {306},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_306_6_a17/}
}