HILSUM, Michel. Bordism invariance in KK-theory. Mathematica Scandinavica, Berkeley, CA, United States, v. 107, n. 1, p. 73–89, 2010. DOI: 10.7146/math.scand.a-15143. Disponível em: https://journals.msp.org/mscand/article/view/554. Acesso em: 24 jul. 2026.