@article{DAN_1973_208_2_a2,
     author = {M. Meredov},
     title = {On a boundary value problem for a class of mixed equations of higher order},
     journal = {Doklady Akademii Nauk},
     pages = {273--276},
     publisher = {mathdoc},
     volume = {208},
     number = {2},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_2_a2/}
}