@article{DAN_1984_276_5_a7,
     author = {V. L. Levin},
     title = {The problem of mass transfer in a topological space and},
     journal = {Doklady Akademii Nauk},
     pages = {1059--1064},
     publisher = {mathdoc},
     volume = {276},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_276_5_a7/}
}