ABBAS, A.; EL-SAYED, A. M. A. Existence of solution for a coupled system of Volterra type integro - dierential equations with nonlocal conditions. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 11, n. 3, p. 5033–5040, 2015. DOI: 10.24297/jam.v11i3.1270. Disponível em: https://www.rajpub.com/index.php/jam/article/view/1270. Acesso em: 1 jun. 2024.