Gemeinsam im Kosmos : museale Zeugnisse zum ersten gemeinsamen Weltraumflug UdSSR-DDR : Katalog Armeemuseum der DDR / Günter Stephan ... [et al.] Kosmos en mens / J.M.J. Kooy Rocket and space scope Voorbij de horizon / A.J. Kampstra national meteorological satellite program Hearings before the Committee on Science and Astronautics U.S. House of Representatives 87th Congress first session, 25-27 july 1961 agard conference proceedings Automation in manned aerospace systems Proceedings of a Conference on results of the first U.S. manned suborbital space flight, June 6, 1961, U.S. department of state auditorium / National Aeronautics …
