MOUMEN, A.; ALBALA, H. .; ZENTAR, O. .; ZIANE, M. .; MAHROUZ, T. . Cauchy Problem Involving Hybrid Proportional–Caputo Derivative in Banach Spaces. Contemporary Mathematics , [S. l.], v. 7, n. 3, p. 3014–3031, 2026. DOI: 10.37256/cm.7320269181. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/9181. Acesso em: 8 may. 2026.