DUNDAS, Bjorn Ian. Fibrations and homology sphere bordism. Mathematica Scandinavica, Berkeley, CA, United States, v. 72, p. 20–28, 1993. DOI: 10.7146/math.scand.a-12433. Disponível em: https://journals.msp.org/mscand/article/view/1194. Acesso em: 24 jul. 2026.