, W. H. R. A. A. A. A Mechanism using the Electronic Signature to Verify the Power of Attorney and the Requested Activity. International Journal on Recent and Innovation Trends in Computing and Communication, [S. l.], v. 1, n. 7, p. 624–627, 2013. DOI: 10.17762/ijritcc.v1i7.2832. Disponível em: https://ijritcc.org/index.php/ijritcc/article/view/2832. Acesso em: 11 sep. 2025.