@unpublished{KostyukStoeckerGreiner2005,
  author  = {Andriy P. Kostyuk and Horst St{\"o}cker and Walter Greiner},
  title   = {Comment to 'The Dependence of the anomalous J / psi suppression on the number of participant nucleons'},
  institution = {Physik},
  year    = {2005},
}