@article{DE_2005_41_7_a1,
     author = {I. B. Badriev and O. A. Zadvornov},
     title = {Analysis of the {Stationary} {Filtration} {Problem} with a {Multivalued} {Law} in the {Presence} of a {Point} {Source}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {874--880},
     publisher = {mathdoc},
     volume = {41},
     number = {7},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2005_41_7_a1/}
}