HILTON, P.; SCHUCK, C. On the structure of nilpotent groups of a certain type. Topological Methods in Nonlinear Analysis, [S. l.], v. 1, n. 2, p. 323–327, 1993. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1993.024. Acesso em: 22 jul. 2024.