@article{DE_1986_22_1_a3,
     author = {T. D. Dzhuraev and M. Mamazhanov},
     title = {Boundary value problems for a class of fourth-order equations of mixed type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {25--31},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_1_a3/}
}