KACZYŃSKI, T. Recursive coboundary formula for cycles in acyclic chain complexes. Topological Methods in Nonlinear Analysis, [S. l.], v. 18, n. 2, p. 351–371, 2001. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2001.039. Acesso em: 22 jul. 2024.