@article{ZNSL_1997_245_a11,
     author = {V. S. Kapitonov and K. L. Malyshev and V. N. Popov and P. A. Sevastianov},
     title = {The effective action and the collective modes spectrum in the antiferromagnetic phase of the three--band repulsive {Hubbard} model},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {216--230},
     publisher = {mathdoc},
     volume = {245},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1997_245_a11/}
}