CHERI, P. V.; DEY, Deblina; K, Akhil; KOTAL, Nirmal; VEER, Dharm. Cohen-Macaulay permutation graphs. Mathematica Scandinavica, Berkeley, CA, United States, v. 130, n. 3, 2024. DOI: 10.7146/math.scand.a-149033. Disponível em: https://journals.msp.org/mscand/article/view/38. Acesso em: 24 jul. 2026.