Hutcheon, I. D.; Huss, G. R.; Fahey, A. J.; Wasserberg, G. J. Extreme Mg-26 and O-17 enrichments in an Orgueil corundum: Identification of a presolar oxide grain. Astrophysical Journal Letters. 1994, 425 (2): L97–L100. Bibcode:1994ApJ...425L..97H. doi:10.1086/187319.
Hutcheon, I. D.; Huss, G. R.; Fahey, A. J.; Wasserberg, G. J. Extreme Mg-26 and O-17 enrichments in an Orgueil corundum: Identification of a presolar oxide grain. Astrophysical Journal Letters. 1994, 425 (2): L97–L100. Bibcode:1994ApJ...425L..97H. doi:10.1086/187319.