TY - JOUR AU - Yu. A. Tserkovnikov TI - A~method of solving infinite systems of equations for two-time thermal Green's functions JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1981 SP - 219 EP - 233 VL - 49 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1981_49_2_a7/ LA - ru ID - TMF_1981_49_2_a7 ER -