1. Abundances of the elements: Meteoritic and solar;Anders;Geochim. Cosmochim. Acta,1989
2. An overview of the asteroids;Binzel,1989
3. Buchwald, V. F., , , Handbook of Iron Meteorites: Their History, Distribution, Composition, and Structure, , pp., University of California Press, , 3 vols., Berkeley, , 1975, .
4. Chamerlain, J. W., , D. M., Hunten, , Theory of Planetary Atmospheres, 2nd ed. Academic Press, Orlando, Florida, 1987,
5. Role of near-Earth asteroids in the space exploration initiative;Davis,1993