@article{ZNSL_1994_209_a5,
     author = {V. S. Kapitonov},
     title = {Functional representation of the partition function and phase transitions in the {Hubbard} model},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {102--120},
     publisher = {mathdoc},
     volume = {209},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1994_209_a5/}
}