@article{IVM_1985_2_a9,
     author = {\`E. N. Bereslavskiǐ},
     title = {Solution of a~problem of filtration with nonunivalent domain of complex velocity},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {74--76},
     publisher = {mathdoc},
     number = {2},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1985_2_a9/}
}