@article{24857,
      author       = "Smithsonian Inst. Astrophysical Observatory",
      title        = "The Production of Cosmic Gamma Rays in Interstellar and
                      Intergalactic Cosmic - Ray Collisions. IV. Gamma Ray
                      Production from Cosmic Protonantiproton Interactions  ",
      year         = "1967",
      note         = "1 brož.",
}