TY - JOUR AU - V. A. Krasnikov TI - On the hydrodynamic approximation of Green's functions of superfluid Bose system JO - Doklady Akademii Nauk PY - 1967 SP - 1037 EP - 1040 VL - 174 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_174_5_a11/ LA - ru ID - DAN_1967_174_5_a11 ER -