MARTINO, Ivan. Introduction to the Ekedahl Invariants. Mathematica Scandinavica, Berkeley, CA, United States, v. 120, n. 2, p. 211–224, 2017. DOI: 10.7146/math.scand.a-25693. Disponível em: https://journals.msp.org/mscand/article/view/320. Acesso em: 24 jul. 2026.