@article{DAN_1976_227_4_a0,
     author = {V. S. Vinogradov},
     title = {On boundary value problems for elliptic systems in the plane with continuous coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {777--780},
     publisher = {mathdoc},
     volume = {227},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_227_4_a0/}
}