VOGRIN, Peter; HALANG WOLFGANG, A. A programmable inference controller meeting highest safety requirements. Journal of Automation, Mobile Robotics and Intelligent Systems, [S. l.], v. 4, n. 1, p. 8–19, 2010. Disponível em: https://www.jamris.org/index.php/JAMRIS/article/view/100. Acesso em: 30 apr. 2025.