@article{DAN_1979_244_4_a9,
     author = {V. K. Romanko},
     title = {On conjugation problems for some partial differential equations},
     journal = {Doklady Akademii Nauk},
     pages = {831--835},
     year = {1979},
     volume = {244},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_244_4_a9/}
}