KAROUBI, Max, Villamayor, O. $K$-théorie algébrique et $K$-théorie topologique II. Mathematica Scandinavica, Berkeley, CA, United States, v. 32, p. 57–86, 1973. DOI: 10.7146/math.scand.a-11446. Disponível em: https://journals.msp.org/mscand/article/view/2160. Acesso em: 25 jul. 2026.