@article{DM_1990_2_2_a3,
     author = {S. P. Yukna},
     title = {Functional approximations in the theory of lower bounds for circuit complexity},
     journal = {Diskretnaya Matematika},
     pages = {45--59},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1990_2_2_a3/}
}