Корнійчук, М. Т., О. І. Романов, І. К. Совтус, and М. О. Шутко. “Risk and Reliability. The Alternative of Categories and Problems of Their Formalization”. Proceedings of National Aviation University (archive) 7, no. 3-4 (December 15, 2000): 306–309. Accessed April 28, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/11308.