VIVEK, Devaraj; KANAGARAJAN, Kuppusamy; ELSAYED, Elsayed M. M. Nonlocal initial value problems for implicit differential equations with Hilfer–Hadamard fractional derivative. Nonlinear Analysis: Modelling and Control, [S. l.], v. 23, n. 3, p. 341–360, 2018. DOI: 10.15388/NA.2018.3.4. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/13190.. Acesso em: 3 may. 2024.