@article{JahnsStoeckerGreineretal.2006,
  author    = {Andr{\´e} Jahns and Horst St{\"o}cker and Walter Greiner and Heinz Sorge},
  title     = {Anti-proton production and annihilation in nuclear collisions at 15-A/GeV},
  journal   = {Physical review letters},
  volume    = {68},
  number    = {19},
  pages     = {2895 -- 2897},
  year      = {2006},
}