TY - JOUR AU - S. B. Gashkov TI - Boolean functions that are difficult to realize and real numbers that are difficult to evaluate JO - Diskretnaya Matematika PY - 1991 SP - 48 EP - 60 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DM_1991_3_1_a3/ LA - ru ID - DM_1991_3_1_a3 ER -