BALACHANDRAN, K.; RAVIKUMAR, R. Nonlocal Cauchy problem for time varying delay integrodifferential equations of Sobolev type in Banach spaces. Tamkang Journal of Mathematics, [S. l.], v. 37, n. 3, p. 193-205, 2006. DOI: 10.5556/j.tkjm.37.2006.164. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/164. Acesso em: 18 oct. 2021.