@article{DAN_1978_241_4_a4,
     author = {V. K. Romanko},
     title = {On the theory of boundary value problems for equations with discontinuous coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {761--764},
     publisher = {mathdoc},
     volume = {241},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_4_a4/}
}