SPREHN, David; WAHL, Nathalie. Forms over fields and Witt’s lemma. Mathematica Scandinavica, Berkeley, CA, United States, v. 126, n. 3, p. 401–423, 2020. DOI: 10.7146/math.scand.a-120488. Disponível em: https://journals.msp.org/mscand/article/view/178. Acesso em: 24 jul. 2026.