1. Lunar surface disposal—a valuable waste management option;Angelo,1981
2. Versuch einer zielrelevanten Bewertung alternativer Strategien zur globalen Entsorgung von radioaktiven Abfällen;Koelle,1983
3. Preliminary investigation of the feasibility of chemical rockets using lunar-derived propellants;Streetmann,1978
4. Low thrust mission analysis using an analytical trajectory optimization model;Lion;AIAA Journal,1971