1. The general background of the lunar surface;Alter;Publs. Astron. Soc. Pacific,1963
2. Fragmentation history of Asteroids;Anders;Icarus,1965
3. Age of craters on Mars;Anders;Science,1965
4. The system of lunar craters, Quadrant I;Arthur;Commun. Lunar Planetary Lab.,,1963
5. The system of lunar craters, Quadrant II;Arthur;Commun. Lunar Planetary Lab.,,1964