TY - JOUR AU - A. L. Garkavi TI - The Helly problem and best approximation of summable functions JO - Sbornik. Mathematics PY - 1971 SP - 187 EP - 207 VL - 13 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1971_13_2_a1/ LA - en ID - SM_1971_13_2_a1 ER -