@article{Cazenave:6914,
      author        = "Cazenave, A.A. and Pfeffer, J. and Dehant, V. and Mandea,
                       M. ",
      title         = "{A 6-year cycle in the length of day and in the surface
                       fluid envelopes. }",
      month         = "Dec",
      year          = "2023",
}