Title: Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10^{17.8}  eV
Authors: A. Aab et al. (Pierre Auger Collaboration).. (M.Giller, A.Śmiałkowski)
Journal: Phys. Rev. D
Publication type: article
DOI: 10.1103/PhysRevD.90.122005