1. Mass-driver reaction engines as Shuttle upper stage;O'Neill,1977
2. Manufaturing of oxygen from lunar materials;Rosenberg;Ann. N.Y. Acad. Sci.,1965
3. Some aspects of space propulsion with extraterrestrial resources;Ramohalli;J. Spacecraft Rockets,1987
4. Combustion of metalized propellants;Price,1984
5. Introductory considerations on hybrid rocket combustion;Green,1963