SHI, F. Applying Safety Concepts and Principles in Vital Controller Design. Journal of System Safety, [S. l.], v. 56, n. 1, p. 13–20, 2020. DOI: 10.56094/jss.v56i1.31. Disponível em: https://jsystemsafety.com/index.php/jss/article/view/31. Acesso em: 21 apr. 2026.