Comet Borrelly and the two kinds of cometary sub-nuclei
67P/Churyumov–Gerasimenko nucleus model: Portrayal of the Rosetta target
Multi-Comet Flyby/Dual-Comet Sample Return Mission
Giotto: Comet Halley Flyby. Report on the Phase a Study
Space Missions to Halley's Comet
Science Aspects of a 1980 Flyby of Comet Encke with a Pioneer Spacecraft
Comet Rendezvous Asteroid Flyby Mission
Comet Halley Micrometeoroid Hazard Workshop
Low Cost Missions to Explore the Diversity of Near Earth Objects
Comet Nucleus Tour: Mishap Investigation Board Report, May 31, 2003
Propellant Selection Criteria for Deep Space Electrically Propelled Missions
Comet Nucleus Sample Return Mission with Electrically Propelled Spacecraft
Low Thrust Navigation for a Comet-Nucleus Sample-Return Mission