1. Vitrification darkening in the lunar highlands and identification of Descartes material at the Apollo 16 site;Adams,1973
2. Apollo Lunar Geology Investigation Team;U.S. Geological Survey Interagency Report: Astrogeology,1972
3. Rare gas and particle track studies of Apollo 15 samples: Hadley Rille and special soils;Behrmann,1972
4. Extinct lunar radioactivities: xenon from 244Pu and 129I in Apollo 14 breccias;Behrmann;Earth Planet. Sci. Lett.,1973