@article{Cazenave:5982,
      author        = "Cazenave, A. and Pfeffer, J. and Moreira, L. and Mandea,
                       M. and Dehant, V. and de Viron, O.",
      title         = "{A 6-7 year cycle in the Earth System.}",
      month         = "Dec",
      year          = "2022",
}