PT Journal AU Pulido-Leboeuf, P Pulido-Bosch, A Calvache, ML Vallejos, Ã Andreu, JM TI Strontium, SO42-/Cl- and Mg2+/Ca2+ ratios as tracers for the evolution of seawater into coastal aquifers: the example of Castell de Ferro aquifer (SE Spain) SO Comptes Rendus Geoscience PY 2003 BP 1039 EP 1048 VL 335 IS 14 ER