Jorge Nakahara Jr and Mads Rasmussen. 2007.
 Linear Analysis of reduced-round CAST-128 and CAST-256. In <em>Proceedings of the 7th Brazilian Symposium on Information and Computational Systems Security</em>, August 27, 2007, Rio de Janeiro, Brasil. SBC, Porto Alegre, Brasil, 15-25. DOI: <a href="https://doi.org/10.5753/sbseg.2007.20914">https://doi.org/10.5753/sbseg.2007.20914</a>.