STRAUME, Eldar. The integral weight system for torus actions on spheres with no fixed point. Mathematica Scandinavica, Berkeley, CA, United States, v. 66, p. 91–109, 1990. DOI: 10.7146/math.scand.a-12294. Disponível em: https://journals.msp.org/mscand/article/view/1330. Acesso em: 25 jul. 2026.