PETERSEN, D. A remark on singular cohomology and sheaf cohomology: Array. MATHEMATICA SCANDINAVICA, [S. l.], v. 128, n. 2, 2022. DOI: 10.7146/math.scand.a-132191. Disponível em: https://www.mscand.dk/article/view/132191. Acesso em: 1 jul. 2022.