FARSI, Carla; GILLASPY, Elizabeth; JULIEN, Antoine; KANG, Sooran; PACKER, Judith. Spectral triples for higher-rank graph $C^*$-algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 126, n. 2, p. 321–338, 2020. DOI: 10.7146/math.scand.a-119260. Disponível em: https://journals.msp.org/mscand/article/view/190. Acesso em: 24 jul. 2026.