TY - JOUR AU - V. B. Sherstyukov TI - On a Problem of Leont'ev and Representing Systems of Exponentials JO - Matematičeskie zametki PY - 2003 SP - 301 EP - 313 VL - 74 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2003_74_2_a11/ LA - ru ID - MZM_2003_74_2_a11 ER -