@article{DAN_1968_180_1_a19,
     author = {V. V. Rzhevskii and Yu. I. Protasov and A. G. Sarkisova},
     title = {Electric conductivity of heterogenic media},
     journal = {Doklady Akademii Nauk},
     pages = {73--74},
     publisher = {mathdoc},
     volume = {180},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_1_a19/}
}