POPESCU, A.; HÖLZL, J.; NIPKOW, T. Formal Verification of Language-Based Concurrent Noninterference. Journal of Formalized Reasoning, [S. l.], v. 6, n. 1, p. 1–30, 2013. DOI: 10.6092/issn.1972-5787/3690. Disponível em: https://jfr.unibo.it/article/view/3690. Acesso em: 4 dec. 2022.