MATSUMOTO, Kengo; SOGABE, Taro. Total extension groups for unital Kirchberg algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 131, n. 2, 2025. DOI: 10.7146/math.scand.a-156673. Disponível em: https://journals.msp.org/mscand/article/view/23. Acesso em: 24 jul. 2026.