@article{DAN_1985_281_4_a2,
     author = {S. V. Medvedev},
     title = {Condensations of $k${-Borel} sets into complete metric spaces},
     journal = {Doklady Akademii Nauk},
     pages = {785--789},
     publisher = {mathdoc},
     volume = {281},
     number = {4},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_281_4_a2/}
}