WARNER, Seth. Residual fields in valuation theory. Mathematica Scandinavica, Berkeley, CA, United States, v. 56, p. 203–221, 1985. DOI: 10.7146/math.scand.a-12097. Disponível em: https://journals.msp.org/mscand/article/view/1529. Acesso em: 25 jul. 2026.