Рева, О. М., and Н. В. Борота. “Method of Applied Information Theory in Estimating Efficiency of Structural Organization of Small Group of Aviation Operators”. Proceedings of National Aviation University 3, no. 2 (September 26, 1999): 272–278. Accessed May 4, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/9435.