LAWSON, H. Blaine Jr. The stable homology of flat torus. Mathematica Scandinavica, Berkeley, CA, United States, v. 36, p. 49–73, 1975. DOI: 10.7146/math.scand.a-11562. Disponível em: https://journals.msp.org/mscand/article/view/2055. Acesso em: 25 jul. 2026.