Charpentier, Robert, Mourad Debbabi, Dima Alhadidi, Azzam Mourad, Nadia Belblidia, Amine Boukhtouta, Aiman Hanna, et al. 2010. “Security Evaluation and Hardening of Free and Open Source Software (FOSS)”. Electronic Communications of the EASST 33 (December). https://doi.org/10.14279/tuj.eceasst.33.452.