HILSUM, M. Bordism invariance in KK-theory. MATHEMATICA SCANDINAVICA, [S. l.], v. 107, n. 1, p. 73–89, 2010. DOI: 10.7146/math.scand.a-15143. Disponível em: https://www.mscand.dk/article/view/15143. Acesso em: 7 apr. 2025.