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This paper extends tools developed in [10, 8] to study character polylogarithms. These objects are used to compute Mordell-Tornheim-Witten character sums and to explore their connections with multiple-zeta values (MZVs) and with their character analogues  .doi:10.1090/mcom/2974 fatcat:3ifw7mhz6fe6ffbteqpooy66ae