@unpublished{WeberBratkovskayaCassingetal.2005,
  author  = {H. Weber and Elena L. Bratkovskaya and Wolfgang Cassing and Horst St{\"o}cker},
  title   = {Hadronic observables from SIS to SPS energies: anything strange with strangeness?},
  institution = {Physik},
  year    = {2005},
}