@article{DAN_1979_245_4_a11,
     author = {Yu. M. Davydov},
     title = {Structure of approximate viscosity},
     journal = {Doklady Akademii Nauk},
     pages = {812--816},
     year = {1979},
     volume = {245},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_4_a11/}
}