TY - JOUR AU - I. V. Ostrovskii TI - Location of the zeros of the derivative of an entire function whose zeros lie close to the real axis JO - Doklady Akademii Nauk PY - 1960 SP - 973 EP - 976 VL - 130 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_130_5_a4/ LA - ru ID - DAN_1960_130_5_a4 ER -