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M.Yu. Kagan and V.V. Valkov, Anomalous resistivity and superconductivity in the two-band Hubbard model with one narrow band (Review Article): Сверхпроводимость, Low Temp. Phys. 37, 69–82, (2011) [Fiz. Nizk. Temp. 37, 84-99, (2011)] DOI: https://doi.org/10.1063/1.3552118.