1.
Christen M, Guillaume M, Jablonowski M, Lenhart P, Moll K. Drones as partners in the airspace: Framework conditions for regulation of civilian drones. TATuP [Internet]. 2018 Dec. 11 [cited 2021 Dec. 8];27(3):20-6. Available from: https://tatup.de/index.php/tatup/article/view/168