CATHELINEAU, Jean-luis. On the homology of $\mathrm{SL}_2$, a complement. MATHEMATICA SCANDINAVICA, [S. l.], v. 66, p. 17–20, 1990. DOI: 10.7146/math.scand.a-12288. Disponível em: https://tidsskrift.dk/math/article/view/12288. Acesso em: 13 aug. 2026.