EGERSZEGI, Krisztián; ERDŐSI, Péter. PROBLEMS IN THE IMPLEMENTATION OF THE ELECTRONIC SIGNATURE. Periodica Polytechnica Social and Management Sciences, [S. l.], v. 11, n. 1, p. 67–82, 2003. Disponível em: https://pp.bme.hu/so/article/view/1681. Acesso em: 1 may. 2024.