TY - JOUR AU - E. G. Belousov AU - V. G. Andronov TI - Ravines of functions and absolutely nonuniform sets and functions JO - Diskretnaya Matematika PY - 1991 SP - 147 EP - 158 VL - 3 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DM_1991_3_3_a13/ LA - ru ID - DM_1991_3_3_a13 ER -