On Some New Gruss Inequalities Concerning to Caputo k-fractional Derivative¨. Punjab University Journal of Mathematics, [S. l.], v. 52, n. 9, p. 17–29, 2025. Disponível em: https://pujm.pu.edu.pk/index.php/pujm/article/view/369. Acesso em: 29 jun. 2025.