FERRARELLO, Daniela. The complement of a d-tree is Cohen-Macaulay. Mathematica Scandinavica, Berkeley, CA, United States, v. 99, n. 2, p. 161–167, 2006. DOI: 10.7146/math.scand.a-15006. Disponível em: https://journals.msp.org/mscand/article/view/691. Acesso em: 24 jul. 2026.