A. Devegili and H. Tobar Neto.
"Applying XML signatures to the definition of an XML schema for digital ballots", in <em>Anais do II Workshop em Segurança de Sistemas Computacionais</em>, Búzios, 2002, pp. 9-15, doi: <a href="https://doi.org/10.5753/sbseg.2002.21258">https://doi.org/10.5753/sbseg.2002.21258</a>.