CHANG, S.-Y. A.; CHEN, E. Some aspects of Ricci flow on the 4-sphere. New Zealand Journal of Mathematics, [S. l.], v. 52, p. 381–402, 2021. DOI: 10.53733/152. Disponível em: https://www.nzjmath.org/index.php/NZJMATH/article/view/152. Acesso em: 8 may. 2024.