Science Exploration Opportunities for Manned Missions to the Moon, Mars, Phobos, and as Asteroid (June 1989)
Lockheed Martin Plymouth Rock Presentation (November 2009)
A Crewed 180-Day Mission to Asteroid Apophis in 2028-2029
The Next Giant Leap: Human Exploration and Utilization of Near-Earth Objects
A Manned Asteroid Mission, a Prelude to a Manned Mars Programme
Role of Near-Earth Asteroids in the Space Exploration Initiative
Asteroid Rescue Mission (Georgia Tech)
Scientific Investigation of Near-Earth Objects via the Orion Crew Exploration Vehicle, A White Paper to the NRC Planetary Science Decadal Survey, 2013-2022
Scientific Investigation of Near-Earth Objects via the Orion Crew Exploration Vehicle (poster)
Near-Earth Asteroid Rendezvous Missions with the Orion Crew Exploration Vehicle.
Into the Beyond: A Crewed Mission to a Near-Earth Object (presentation)
Into the Beyond: A Crewed Mission to a Near-Earth Object (paper)
Strengthening U.S. Exploration Policy via Human Expeditions to Near-Earth Objects
A Piloted Orion Flight to a Near-Earth Object: A Feasibility Study
