@article{DE_1989_25_12_a5,
     author = {S. A. Vavilov},
     title = {Investigation of the solvability of a class of boundary value problems with a free boundary},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2075--2081},
     publisher = {mathdoc},
     volume = {25},
     number = {12},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_12_a5/}
}