@article{DE_1971_7_1_a6,
     author = {A. M. Nakhushev and V. I. Pa\v{s}kovskii},
     title = {The problem of {A.} {V.} {Bicadze} for an equation of mixed type in multidimensional domains},
     journal = {Differencialʹnye uravneni\^a},
     pages = {57--63},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_1_a6/}
}