"Tidal Deformation of the Solid Earth: A Finite Difference Discretization", S.K.Poulsen; Niels Bohr Institute, University of Copenhagen; p 24; [1]Archivado el 11 de octubre de 2016 en Wayback Machine.
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"Tidal Deformation of the Solid Earth: A Finite Difference Discretization", S.K.Poulsen; Niels Bohr Institute, University of Copenhagen; p 24; [1]Archivado el 11 de octubre de 2016 en Wayback Machine.