1. Abe, Y. and Matsui, T.: 1986, Proc. 17th Lunar Plant. Sci. Conf., J. Geophys. Res.
91, E291–302.
2. Ahrens, T. J.: 1990, in Origin of the Earth, Newsom, H. E. and Jones, J. H. (eds.), Oxford University Press, New York, pp. 211–227.
3. Ahrens, T. J., O’Keefe, J. D. and Lange, M. A.: 1989, in Origin and Evolution of Planetary and Satellite Atmospheres, Atreya, S. K., Pollack, J. B. and Matthews, M. S. (eds.), University of Arizona Press, Tucson, pp. 328–385.
4. Benz, W. and Cameron, A. G. W.: 1990, in Origin of the Earth, Newsom, H. E. and Jones, J. H. (eds.), Oxford University Press, New York, pp. 61–67.
5. Boss, A. P., Morfill, G. E. and Tscharnuter, W. M.: 1989, in Origin and Evolution of Planetary and Satellite Atmospheres, Atreya, S. K., Pollack, J. B. and Matthews, M. S. (eds.), University of Arizona Press, Tucson, pp. 35–77.