. . . "RIV/00216208:11320/08:00100870!RIV09-MSM-11320___" . "Astroparticle Physics" . "Upper limit on the cosmic-ray photon flux above 10^19 eV using the surface detector of the Pierre Auger Observatory" . "56o!jjINwK3PH4Eb6i-9KyySb2s=" . "48.752"^^ . "3.816"^^ . . "3.25"^^ . "57.247"^^ . . . . . "http://www.isvav.cz/h12/resultDetail.do?rowId=RIV%2F00216208%3A11320%2F08%3A00100870!RIV09-MSM-11320___"^^ . "0.067"^^ . . "J_imp \u010Dl\u00E1nek v impaktovan\u00E9m \u010Dasopise" . . .