1.
Ortwein A, Graw V, Heinemann S, Henning T, Schultz J, Selg F, Staar K, Rienow A. Earth observation from the ISS in classrooms - from E-Learning to M-Learning. EJG [Internet]. 2017 Jan. 1 [cited 2025 Oct. 17];8(3). Available from: https://www.eurogeojournal.eu/index.php/egj/article/view/300