WANG, Lin Feng. On Ricci-harmonic metrics. Annales Fennici Mathematici, [S. l.], v. 41, n. 1, p. 417–437, 2016. DOI: 10.5186/aasfm.2016.4127. Disponível em: https://afm.journal.fi/article/view/135611. Acesso em: 8 jan. 2026.