@article{DAN_1957_113_1_a1,
     author = {Yu. A. Brudnyi and I. E. Gopengauz},
     title = {On a problem raised by {N.\,N.~Lusin}},
     journal = {Doklady Akademii Nauk},
     pages = {12--15},
     publisher = {mathdoc},
     volume = {113},
     number = {1},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_113_1_a1/}
}