@article{MZM_1996_59_6_a12,
     author = {A. V. Andrianov},
     title = {An analog of the {Jackson--Nikol'skii} theorem on the approximation by superpositions of sigmoidal functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {915--918},
     publisher = {mathdoc},
     volume = {59},
     number = {6},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1996_59_6_a12/}
}