@article{SaloSchmidtSpahn2001,
  author    = {Salo, H. and Schmidt, J{\"u}rgen and Spahn, Frank},
  title     = {Viscous overstability in Saturn's B ring : I. Direct simulations and measurements of transport coefficients},
  year      = {2001},
  language  = {en}
}
@article{SchmidtSaloSpahn2001,
  author    = {Schmidt, J{\"u}rgen and Salo, H. and Spahn, Frank},
  title     = {Viscous overstability in Saturn's B ring : II. Hydrodynamic theory and comparison to simulations},
  year      = {2001},
  language  = {en}
}