@article{ZNSL_1998_251_a6,
     author = {A. Montorsi and M. Rasetti},
     title = {$Q${-Symmetry} in {Condensed} {Matter} {Physics:} {Effective} {Generalized} {Hubbard} {Model} with {Quantum} {Symmetry}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {69--79},
     publisher = {mathdoc},
     volume = {251},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1998_251_a6/}
}