Bureika, Gintautas, and Gediminas Vaičiūnas. “90th Anniversary of the Amazing and Heroic Deed of Steponas Darius and Stasys Girėnas”. Aviation 27, no. 3 (October 12, 2023): 129–130. Accessed July 7, 2024. https://jest.vgtu.lt/index.php/Aviation/article/view/19931.