@Article{ -_BUENO_García-Gámez_GONZÁLEZ_Lozano-Bahilo_Melgarejo-Fernández_Navarro-Quirante_NAVAS:399-406,

author = { Pierre Auger Collaboration - and ANTONIO BUENO VILLAR and Diego García-Gámez and JAVIER GONZÁLEZ TABOADA and Jose Julio Lozano-Bahilo and Antonio Jesús Melgarejo-Fernández and Jose Luis Navarro-Quirante and SERGIO NAVAS CONCHA } ,

title = { UPPER LIMIT ON THE COSMIC-RAY PHOTON FRACTION AT EEV ENERGIES FROM THE PIERRE AUGER OBSERVATORY },

journal = { Astroparticle physics (Print) },

year = { 2009 },

volume = { 31 },

pages = { 399-406 },

doi = { http://www.sciencedirect.com/science/article/pii/S0927650509000693 },

}