BALLICO, E. Stable vector bundles on curves: numerical invariants of their extremal subbundles. MATHEMATICA SCANDINAVICA, [S. l.], v. 89, n. 1, p. 46–56, 2001. DOI: 10.7146/math.scand.a-14330. Disponível em: https://www.mscand.dk/article/view/14330. Acesso em: 2 may. 2024.