@article{DE_1998_34_12_a8,
     author = {\`E. N. Sabziev},
     title = {Unboundedness of the solution of an overdetermined problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1645--1648},
     publisher = {mathdoc},
     volume = {34},
     number = {12},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_12_a8/}
}