The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets
C. M. O’D. Alexander, R. Bowden, M. L. Fogel, K. T. Howard, C. D. K. Herd, L. R. Nittler Published Online July 12 2012 Science 10 August 2012: Vol. 337 no. 6095 pp. 721-723 DOI:…
Chemical evidence relevant to the origin of the solar system by Harold Urey
speech on 25 June 1964 at 14. Treffen der Nobelpreisträger, Lindau Deutschlandradio, 24.6 MB, 54 min. AUDIO (MP3)


































