HAMOUDA, Essam; FAHMY, Mohammed. Fundamental groups of iterated line graphs. Global Journal of Mathematical Analysis, [S. l.], v. 2, n. 1, p. 1–5, 2013. DOI: 10.14419/gjma.v2i1.1489. Disponível em: https://sciencepubco.com/index.php/GJMA/article/view/1489.. Acesso em: 3 may. 2024.