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2. When will on-orbit servicing be part of the space enterprise?;Hastings;Acta Astronaut.,2016
3. Orbital Express program summary and mission overview;Friend,2008
4. Simplified parametric cost trade-offs in satellite system design;Manger;Acta Astronaut.,1984
5. Satellite servicing in orbit;Vandenkerckhove;ESA Journal,1981