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P. Sommers, "The Highest Energy Cosmic Rays: Observations", in AIP Conference Proceedings for the Centenary Cosmic Ray Symposium 2012: Discovery of Cosmic Rays, (, 2012) p.
P. Sommers, "Ultra-High Energy Cosmic Rays: Observational Results," Astropart. Phys. 39-40, 88 – 94 (2012)
J. Abraham, et al. (Auger Collaboration), "Measurement of the Depth of Maximum of Extensive Air Showers above 1018 eV," Phys. Rev. Lett. 104, 091101 (2010)
J. Abraham, et al. (Auger Collaboration), "A Study of the Effect of Molecular and Aerosol Conditions in the Atmosphere on Air Fluorescence Measurements at the Pierre Auger Observatory," Astropart. Phys. 33, 108 – 129 (2010)
J. Abraham, et al. (Auger Collaboration), "Measurement of the Energy Spectrum of Cosmic Rays above 1018 eV using the Pierre Auger Observatory," Phys. Lett. B 685, 239 – 246 (2010)
J. Abraham, et al. (Auger Collaboration), "Trigger and Aperture of the Surface Detector Array of the Pierre Auger Observatory," Nucl. Instrum. Methods A 613, 29 – 39 (2010)
J. Abraham, et al. (Auger Collaboration), "The Northern Site of the Pierre Auger Observatory," New Jour. Phys. 12, 035001 (2010)
P. Sommers, "Recent Results from the Pierre Auger Cosmic Ray Observatory", in Invited Highlight Talks of the 25th International Cosmic Ray Conference, (, 2009) p.
J. Abraham, et al. (Auger Collaboration), "Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory," Phys. Rev. D 79, 102001 (2009) Abstract/Comments
J. Abraham, et al. (Auger Collaboration), "Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory," Astropart. Phys. 32, 89 – 99 (2009)
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P. Sommers : Publications