TY - JOUR AU - V. F. Los' TI - Projection operator method in the theory of disordered systems. I.~Spectra of quasiparticles JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1987 SP - 85 EP - 102 VL - 73 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1987_73_1_a8/ LA - ru ID - TMF_1987_73_1_a8 ER -