Vliegmechanica van raketten en ruimtevoertuigen : bewerkt naar het college van prof. ir. H. Wittenberg : Raketten / A.P. Blom wissenschaftliche bücherei "weltraumforschung und raumfahrt" Elektrische Antriebe von Raumfahrzeugen : physikalische Grundlagen und technologische Entwicklungen / Günther F. Au Space weapons : a handbook of military astronautics / ed. by James H. Straubel ... [et al.] Vliegmechanica van raketten en ruimtevoertuigen : bewerkt naar het college van prof. ir. H. Wittenberg / A.P. Blom : Dl. 2: Satellieten en ruimtevoertuigen agard lecture series Attitude stabilization of satellites in orbit / North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development ESTEC : European space research and technology centre / ESA, European space agency Behind the flying saucers / F. Scully General report of the scientific and technical committee / North Atlantic Assembly. Scientific and Technical Committee ; general rapporteur: Ian Watson Rocket and space scope Voorbij de horizon / A.J. Kampstra defense space interests Hearings before the committee on science and astronautic U.S. House of Representatives 87th congress, 1st Session, 17 - 23 march 1961 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
