"Astronautics Economic aspects." . . "Vol spatial." . . "Aerospace industries." . . "Space industrialization." . . "Astronautique Aspect économique." . . "Besliskunde." . . . . . . . . "Livres électroniques" . . . . . . . . . . . "Electronic books" . . . . . . . . . "Economic principles applied to space industry decisions" . . "Economic principles applied to space industry decisions"@en . . . . "Ruimtevaart." . . "Space flights--Economic aspects." . . "Space flights Economic aspects." . "Industries aérospatiales." . . "Economische aspecten." . . . .