CARLITZ, L. Explicit evaluation of certain exponential sums. Mathematica Scandinavica, Berkeley, CA, United States, v. 44, p. 5–16, 1979. DOI: 10.7146/math.scand.a-11793. Disponível em: https://journals.msp.org/mscand/article/view/1851. Acesso em: 25 jul. 2026.