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Science (New York, N.Y.)|December 21, 1979
Anthropogenic Albedo Changes and the Earth's ClimateC Sagan, O B Toon, J B PollackScience (New York, N.Y.)|January 12, 1990
Climate and smoke: an appraisal of nuclear winterR P Turco, O B Toon, T P Ackerman, et al.Science (New York, N.Y.)|December 23, 1983
Nuclear winter: global consequences of multple nuclear explosionsR P Turco, O B Toon, T P Ackerman, et al.American Journal of Orthodontics|November 1, 1977
Biostereometric analysis of surgically corrected abnormal facesS Berkowitz, J CuzziOrigins of Life and Evolution of the Biosphere : the Journal of the International Society for the Study of the Origin of Life|January 1, 1991
Electrical energy sources for organic synthesis on the early EarthC Chyba, C SaganScience (New York, N.Y.)|July 7, 1972
Earth and Mars: evolution of atmospheres and surface temperaturesC Sagan, G MullenScience (New York, N.Y.)|May 23, 1997
The early faint sun paradox: organic shielding of ultraviolet-labile greenhouse gasesC Sagan, C ChybaNature|January 9, 1992
Endogenous production, exogenous delivery and impact-shock synthesis of organic molecules: an inventory for the origins of lifeC Chyba, C SaganPageof 16