F. Dapper and L. Fagundes. " OpenPCI: Um toolkit para atender os requisitos técnicos do PCI DSS", in Companion Proceedings of the 9th Brazilian Symposium on Information and Computational Systems Security, Campinas/SP, 2009, pp. 235-236, doi: https://doi.org/10.5753/sbseg_estendido.2009.20636.