MARDANOV, M.; SHARIFOV, Y.; ISMAYILOVA, K.; ZAMANOVA, S. Existence and Uniqueness of Solutions for the System of First-order Nonlinear Differential Equations with Three-point and Integral Boundary Conditions. European Journal of Pure and Applied Mathematics, [S. l.], v. 12, n. 3, p. 756–770, 2019. DOI: 10.29020/nybg.ejpam.v12i3.3433. Disponível em: Acesso em: 5 dec. 2022.