AJAYI, D. O. A. On Span Of Flag Manifolds Rf(1, 1, 1, N − 3). Journal of the Nigerian Mathematical Society, [S. l.], v. 33, n. 1-3, p. 169–174, 2021. Disponível em: https://ojs.ictp.it/jnms/index.php/jnms/article/view/715. Acesso em: 19 apr. 2024.