@article{ZNSL_1988_169_a7,
     author = {V. S. Kapitonov},
     title = {The ``slave boson'' method for the {Hubbard} model --
},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {68--75},
     publisher = {mathdoc},
     volume = {169},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1988_169_a7/}
}