KHAN, M. N. I.; HASEEB, A. F(a0, a1, ...., an)-structures on manifolds. Results in Nonlinear Analysis, [S. l.], v. 7, n. 1, p. 8–13, 2023. Disponível em: https://nonlinear-analysis.com/index.php/pub/article/view/207. Acesso em: 25 apr. 2024.