Some aspects of the advantage of using diesel engines for railway propulsion
Aerodynamic Data for Calculation of Eldo-a Stationary in-Flight Loads and Loading Distribution
The Importance of Electric Propulsion for the Transport of Payloads into Twenty-Four Hour Orbits
Evaluation of Development Costs and Possibilities of Direct Television Satellites
A New Economic Concept for European Satellite Launch Vehicle Systems
Attelage automatique simplifie destine aux vehicules ferroviaires des usines siderurgiques