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Two new one-dimensional fermionic models depending on two independentparameters are formulated and solved exactly by the Bethe-ansatz method. Thesemodels connect continuously the integrable Hubbard and supersymmetric t-Jmodels.Comment: 11pages and no figure

Interpolation between Hubbard and supersymmetrict-Jmodels: two-parameter integrable models of correlated electrons