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Coin, Switzerland, 1 Franc, Lockheed Sirius "Tingmissartoq", Lindbergh | National Air and Space Museum
Siteco Switzerland AG - Sirius® Lichtkopf
Joachim Weber (Hrsg.): Handbook on Geopolitics and Security in the Arctic. The High North Between Cooperation and Confrontation. Cham: Springer Nature Switzerland, 2020, 378 Seiten