SUKOCHEV, F. A.; SHEREMETYEV, V. E. The Linear Groups of Injective Factors and of Matroid $C^*$-Algebras are Contractible to a Point. Mathematica Scandinavica, Berkeley, CA, United States, v. 77, p. 119–128, 1995. DOI: 10.7146/math.scand.a-12553. Disponível em: https://journals.msp.org/mscand/article/view/1119. Acesso em: 25 jul. 2026.