1. Clarity and confusion;Ash;LPSC XXXI,2000
2. Correlated oxygen and magnesium isotopes in Allende chondrules;Ash;Met. Planet. Sci,2000
3. Oxygen isotope systematics in Allende chondrules;Ash;LPSC XXX,1999
4. Absolute isotopic abundance ratios and atomic weight of magnesium;Catanzaro;J. Res. NBS-A,1966
5. Oxygen isotopic comositions of chondrules in Allende and ordinary chondrites;Clayton,1983