@article{DAN_1974_215_2_a3,
     author = {B. A. Kushner},
     title = {On a type of computable real functions},
     journal = {Doklady Akademii Nauk},
     pages = {259--262},
     publisher = {mathdoc},
     volume = {215},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_215_2_a3/}
}