@unpublished{RuppertNayakDietrichetal.2005,
  author  = {J{\"o}rg Ruppert and Gouranga C. Nayak and Dennis Dean Dietrich and Horst St{\"o}cker and Walter Greiner},
  title   = {Partonic scattering cross sections in the QCD medium},
  institution = {Physik},
  year    = {2005},
}