@article{Khan:4005,
      author        = "Khan, A.  and Liebske, C. and Rozel, A. and Rivoldini, A.
                       and Nimmo, F and Connolly, J. A. D.  and Plesa, A. -C. and
                       Giardini, D.",
      title         = "{A Geophysical Perspective on the Bulk Composition of
                       Mars}",
      year          = "2018",
}