1. Carbon and nitrogen in Roosevelt County 075: An unusual organic-rich UOC (abstract);Ash;Meteoritics,1992
2. Carbon in weathered ordinary chondrites from Roosevelt County (abstract);Ash;Lunar Planet. Sci,1993
3. Light nitrogen associated with SiC in Cold Bokkeveld (abstract);Ash;Meteoritics,1989
4. Recondite interstellar carbon in the Allende meteorite revealed by preparative pre-combustion;Ash;Geochim. Cosmochim. Acta,1990
5. Renazzo-like chondrites: A light element isotope study (abstract);Ash;Meteoritics,1991