Positive solutions for impulsive mixed fractional differential equations with p-Laplacian operator: Positive solutions for impulsive mixed fractional differential equations. Nonlinear Studies, [S. l.], v. 28, n. 2, 2021. Disponível em: https://www.nonlinearstudies.com/index.php/nonlinear/article/view/2372. Acesso em: 14 oct. 2025.