Kondroška, Vaidotas, and Jonas Stankūnas. “Reorganization of Lithuanian Airspace”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 2, no. 6 (December 31, 2010): 103-109. Accessed December 26, 2024. https://jeelm.vgtu.lt/index.php/MLA/article/view/10237.