TALBI, M. E.; BENAYAT, D. <b>The homotopy exact sequence of a pair of graphs</b> - doi: 10.4025/actascitechnol.v35i4.15775. Acta Scientiarum. Technology, [S. l.], v. 35, n. 4, p. 733–738, 2013. DOI: 10.4025/actascitechnol.v35i4.15775. Disponível em: https://periodicos.uem.br/actascitechnol/index.php/ActaSciTechnol/article/view/15775. Acesso em: 7 set. 2025.