%0 Journal Article %A V. K. Fedyanin %T Particle-like excitations in systems described by the Hubbard model without the chirality condition %J Teoretičeskaâ i matematičeskaâ fizika %D 1981 %P 86-90 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1981_46_1_a7/ %G ru %F TMF_1981_46_1_a7