1. An Approach to Develop Space Solar Power as a New Energy System for Developing Countries;Nagatomo;Solar Energy,1996
2. Commercial Implications of Market Research on Space Tourism;Collins,1994
3. Asteroidal Resource Opportunities Suggested by Meteorite Data;Lewis,1993
4. Asteroidal Resources for Space Manufacturing;O'Leary,1982
5. The Exploitation of Space Oases;Kuck,1995