Observation of the suppression of the flux of cosmic rays above 4 x 10 (19) eV. af Abraham, J, Abreu, P, Aglietta, M, Aguirre, C, Allard, D, Allekotte, I, Allen, J, Allison, P, Alvarez-Muñiz, J, Ambrosio, M, Anchordoqui, L, Andringa, S, Anzalone, A, Aramo, C, Argirò, S, Arisaka, K, Armengaud, E, Arneodo, F, Arqueros, F, Asch, T, Asorey, H, Assis, P, Atulugama, B, Aublin, J, Ave, M

Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the Pierre Auger Observatory. af Abraham, J, Abreu, P, Aglietta, M, Aguirre, C, Allard, D, Allekotte, I, Allen, J, Allison, P, Alvarez-Muñiz, J, Ambrosio, M, Anchordoqui, L, Andringa, S, Anzalone, A, Aramo, C, Argirò, S, Arisaka, K, Armengaud, E, Arneodo, F, Arqueros, F, Asch, T, Asorey, H, Assis, P, Atulugama, B, Aublin, J, Ave, M

Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory af Abraham, J, Aglietta, M, Aguirre, C, Allard, D, Allekotte, I, Allison, P, Alvarez, C, Alvarez-Muñiz, J, Ambrosio, M, Anchordoqui, L, Anjos, J, Aramo, C, Arisaka, K, Armengaud, E, Arneodo, F, Arqueros, F, Asch, T, Asorey, H, Atulugama, B, Aublin, J, Ave, M, Avila, G, Bacelar, J, Bäcker, T, Badagnani, D

Correlation of the highest-energy cosmic rays with nearby extragalactic objects. af Abraham, J, Abreu, P, Aglietta, M, Aguirre, C, Allard, D, Allekotte, I, Allen, J, Allison, P, Alvarez, C, Alvarez-Muñiz, J, Ambrosio, M, Anchordoqui, L, Andringa, S, Anzalone, A, Aramo, C, Argirò, S, Arisaka, K, Armengaud, E, Arneodo, F, Arqueros, F, Asch, T, Asorey, H, Assis, P, Atulugama, B, Aublin, J