@article{DE_1970_6_3_a5,
     author = {\`E. G. Khalikov},
     title = {Certain boundary value problems with conditions at infinity},
     journal = {Differencialʹnye uravneni\^a},
     pages = {435--442},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_3_a5/}
}