@unpublished{BassBischoffMaruhnetal.2006,
  author  = {Steffen A. Bass and Arnd Bischoff and Joachim Maruhn and Horst St{\"o}cker and Walter Greiner},
  title   = {Neural networks for impact parameter determination},
  institution = {Physik},
  pages     = {18},
  year    = {2006},
}