TY - JOUR AU - V. P. Soltan TI - An axiomatic approach to the theory of convex functions JO - Doklady Akademii Nauk PY - 1980 SP - 813 EP - 816 VL - 254 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_254_4_a10/ LA - ru ID - DAN_1980_254_4_a10 ER -