@article{FranckKowalle1995,
  author    = {Franck, Siegfried and Kowalle, Georg},
  title     = {On the structure and dynamics near the CMB : seismological investigations and modelling of chemical reactions},
  year      = {1995},
  language  = {en}
}
@article{FranckKowalle1994,
  author    = {Franck, Siegfried and Kowalle, Georg},
  title     = {Seismic velocity models for an internally asymmetric Mars},
  year      = {1994},
  language  = {en}
}