TY - JOUR AU - V. N. Popov TI - Application of functional integration to the derivation of the low-frequency asymptotic behaviour of Green's functions and kinetic equations for a nonideal Bose gas JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1971 SP - 90 EP - 108 VL - 6 IS - 1 UR - http://geodesic.mathdoc.fr/item/TMF_1971_6_1_a9/ LA - ru ID - TMF_1971_6_1_a9 ER -