@article{Mandea:5968,
      author        = "Mandea, M. and Dehant, V. and Cazenave, A.",
      title         = "{GRACEFUL: Probing the deep Earth interior by synergistic
                       use of observations of the magnetic and gravity fields, and
                       of the rotation of the Earth.}",
      month         = "May",
      year          = "2022",
}