LUUKKAINEN, Juoni. Embeddings of $n$-dimensional locally compact metric spaces to $2n$-manifolds. Mathematica Scandinavica, Berkeley, CA, United States, v. 68, p. 193–209, 1991. DOI: 10.7146/math.scand.a-12357. Disponível em: https://journals.msp.org/mscand/article/view/1272. Acesso em: 24 jul. 2026.