@article{DAN_1994_337_2_a5,
     author = {O. A. Oleinik and A. S. Shamaev},
     title = {On the averaging of solutions of a boundary value problem for the},
     journal = {Doklady Akademii Nauk},
     pages = {168--171},
     publisher = {mathdoc},
     volume = {337},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_337_2_a5/}
}