TY - JOUR AU - A. V. Astakhov TI - A contribution to the proof of double spectral representations JO - Doklady Akademii Nauk PY - 1960 SP - 307 EP - 310 VL - 133 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_133_2_a14/ LA - ru ID - DAN_1960_133_2_a14 ER -