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1.- ET extraterrestrial chromium at the Graphite Peat P/Tr boundary and in the Bedout impact melt breccia
Lunar and Planetary Science Conference; Houston, TX; USA; United States, 2006
Lunar and planetary science, XXXVII; papers presented to the Thirty-seventh lunar and planetary science conference
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2.- EXTRATERRESTRIAL MATTER ON EARTH; EVIDENCE FROM THE CR ISOTOPES
LUNAR AND PLANETARY INSTITUTE; HOUSTON, TX; USA; UNITED STATES, 2000
CATASTROPHIC EVENTS AND MASS EXTINCTIONS; IMPACTS AND BEYOND
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