Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10.sup.17.8./sup.  eV

AAB, A., ABREU, P., AGLIETTA, M., BOHÁČOVÁ, Martina, CHUDOBA, Jiří, EBR, Jan, MANDÁT, Dušan, NEČESAL, Petr, PALATKA, Miroslav, PECH, Miroslav, PROUZA, Michael, ŘÍDKÝ, Jan, SCHOVÁNEK, Petr, TRÁVNÍČEK, Petr, VÍCHA, Jakub. Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10^17.8  eV. Physical Review D: Particles, Fields, Gravitation and Cosmology. 2014, 90(12), "122005-1"-"122005-25". ISSN 1550-7998. Available: doi: 10.1103/PhysRevD.90.122005