THOMSEN, K. Discrete asymptotic homomorphisms in E-theory and KK-theory. MATHEMATICA SCANDINAVICA, [S. l.], v. 92, n. 1, p. 103–128, 2003. DOI: 10.7146/math.scand.a-14396. Disponível em: https://www.mscand.dk/article/view/14396. Acesso em: 4 may. 2024.