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Lundgren, P., Marino Protti, Andrea Donnellan, M. Heflin, E. Hernández, και D. Jefferson. Seismic Cycle and Plate Margin Deformation in Costa Rica: GPS Observations From 1994 to 1997. 1999.

Lundgren, P., et al. Seismic Cycle and Plate Margin Deformation in Costa Rica: GPS Observations From 1994 to 1997. 1999.