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Natural ResourcesMarine SciencesPteridologyPond CultureComets
83
Extraterrestrial Cause for the Cretaceous-Tertiary Extinction
Luis W. Alvarez, Walter Álvarez, Frank Asaro et al. · Science · 1980 · 4K citations
Brian Mason · Soil Science · 1952 · 1.9K citations
Organic Compound Synthesis on the Primitive Earth
Stanley L. Miller, Harold C. Urey · Science · 1959 · 1.4K citations
A comet model. I. The acceleration of Comet Encke
Fred L. Whipple · The Astrophysical Journal · 1950 · 871 citations
Natural Sciences, Astronomy, Physics +15
S. J. Aarseth · Endeavour · 1986 · 758 citations
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