Samkov, Alexei, Galyna Suslova, Vladimir Litvinenko, and Yurii Zakharchenko. “Project Management of Aeronautical System Upgrade in Uncertain Conditions”. Aviation 15, no. 3 (October 4, 2011): 69-75. Accessed November 25, 2024. https://transport.vgtu.lt/index.php/Aviation/article/view/4973.