@phdthesis{Beyer2007,
  author    = {Beyer, Florian},
  title     = {Asymptotics and singularities in cosmological models with positive cosmological constant},
  address   = {Potsdam},
  pages     = {173 S. : graph. Darst.},
  year      = {2007},
  language  = {en}
}