@article{DAN_1983_271_1_a10,
     author = {A. B. Ugol'nikov},
     title = {Realization of functions from closed classes by schemes of},
     journal = {Doklady Akademii Nauk},
     pages = {49--51},
     publisher = {mathdoc},
     volume = {271},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_271_1_a10/}
}