1. The Global Exploration Roadmap;Group,2018
2. Reusable space tug concept and mission;Cresto Aleina;Acta Astronaut.,2016
3. Optimal low-thrust trajectories for nuclear and solar electric propulsion;Genta;Acta Astronaut.,2016
4. Indirect optimization method for low-thrust interplanetary trajectories;Casalino,2007
5. High-voltage array ground test for direct-drive solar electric propulsion;Howell;Acta Astronaut.,2006