TY - JOUR AU - E. G. Goryachev AU - E. V. Kuz'min TI - A method of self-consistent perturbation theory with respect to the energy overlap integral in the Hubbard model JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1990 SP - 412 EP - 427 VL - 85 IS - 3 UR - http://geodesic.mathdoc.fr/item/TMF_1990_85_3_a6/ LA - ru ID - TMF_1990_85_3_a6 ER -