Rástočný, Karol, Mária Franeková, Iveta Zolotová, and Karol Rástočný, Jr. 2014. “Quantitative Assessment of Safety Integrity Level of Message Transmission Between Safety-Related Equipment”. COMPUTING AND INFORMATICS 33 (2):343-68. https://www.cai.sk/ojs/index.php/cai/article/view/1727.