@article{DAN_1986_289_3_a1,
     author = {A. D. Dzhuraev},
     title = {On the theory of boundary value problems for elliptic systems of},
     journal = {Doklady Akademii Nauk},
     pages = {525--528},
     publisher = {mathdoc},
     volume = {289},
     number = {3},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_289_3_a1/}
}