%0 Journal Article %A N. P. Red'kin %T On the complexity of implementation of characteristic functions of the spheres by circuits of functional elements %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2022 %P 18-20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2022_3_a3/ %G ru %F VMUMM_2022_3_a3