Vinicius Ribeiro and Raul Weber. 2004.
 Problemas computacionais para esquemas de criptografia de chave pública. In <em>Proceedings of the 4th Workshop on Computer Systems Security</em>, May 10, 2004, Gramado, Brasil. SBC, Porto Alegre, Brasil, 95-106. DOI: <a href="https://doi.org/10.5753/sbseg.2004.21229">https://doi.org/10.5753/sbseg.2004.21229</a>.