BENDERSKY, M. Characteristic Classes of $n$-Manifolds Immersing in $\mathsf{R}^{n+k}$. MATHEMATICA SCANDINAVICA, [S. l.], v. 31, p. 293–300, 1972. DOI: 10.7146/math.scand.a-11436. Disponível em: https://www.mscand.dk/article/view/11436. Acesso em: 5 may. 2024.