@article{TMF_1990_85_3_a6,
     author = {E. G. Goryachev and E. V. Kuz'min},
     title = {A~method of~self-consistent perturbation theory with respect to~the energy overlap integral in~the {Hubbard} model},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {412--427},
     publisher = {mathdoc},
     volume = {85},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_85_3_a6/}
}