TY - JOUR AU - E. I. Moiseev TI - On the differential properties of expansions in a system of sines and cosines JO - Differencialʹnye uravneniâ PY - 1996 SP - 117 EP - 126 VL - 32 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1996_32_1_a14/ LA - ru ID - DE_1996_32_1_a14 ER -