@article{DAN_1988_298_4_a5,
     author = {A. Dzhuraev},
     title = {Some boundary value problems for second-order elliptic systems of},
     journal = {Doklady Akademii Nauk},
     pages = {797--802},
     publisher = {mathdoc},
     volume = {298},
     number = {4},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_298_4_a5/}
}