TY - JOUR AU - O. G. Parfenov TI - Widths of a class of analytic functions JO - Sbornik. Mathematics PY - 1983 SP - 283 EP - 289 VL - 45 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1983_45_2_a8/ LA - en ID - SM_1983_45_2_a8 ER -