Getzov P, Stoyanov S, Boyanov P. RESEARCH OF THE TRANSPARENCY CHARACTERISTICS OF THE ATMOSPHERE WHICH INFLUENCE THE FLIGHT CONTROL OF FLYING MACHINES: RESEARCH OF THE TRANSPARENCY CHARACTERISTICS OF THE ATMOSPHERE WHICH INFLUENCE THE FLIGHT CONTROL OF FLYING MACHINES. JSAR [Internet]. 2023 Mar. 19 [cited 2024 Dec. 4];11(1):5-9. Available from: https://jsar.ftn.shu.bg/index.php/jsar/article/view/209