TY - JOUR AU - V. I. Yukalov TI - On the description of quasiparticles by Green's functions JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1973 SP - 422 EP - 428 VL - 17 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1973_17_3_a9/ LA - ru ID - TMF_1973_17_3_a9 ER -