@article{IM2_1967_1_3_a2,
     author = {A. D. Dzhuraev},
     title = {A linear boundary value problem for a system of composite partial differential equations},
     journal = {Izvestiya. Mathematics},
     pages = {525--543},
     year = {1967},
     volume = {1},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_3_a2/}
}