1. Arvidson, R., Boyce, J., Chapman, C, Cintala, M., Fulchignoni, M, Moore, H., Neukum,G., Schultz, P., Soderblom, L., Strom., R., Woronov, A. and Young, R. (1978) Stan-dard techniques for presentation and analysis of crater size-frequency data, Icarus 37, 467–474.
2. Asphaug, E., Moore, J.M., Morrison, D., Benz, W., Nolan, M.C. and Sullivan, R.J. (1996) Mechanical and geological effects of impact cratering on Ida, Icarus 120, 158–184.
3. Basaltic Volcanism Study Project (1981) Chapter 8 “Chronology of planetary volcanism by comparative studies of planetary cratering”, in Basaltic Volcanism on the Terrestrial Planets, Pergamon Press, N.Y., pp. 1049–1127.
4. Belton, M.J.S. and 19 co-authors (1994) First images of asteroid 243 Ida, Science 265,1543.
5. Belton, M.J.S. and 9 co-authors (1992) Galileo encounter with 951 Gaspra- First pictures of an asteroid, Science 257, 1647–1652.