@article{LorenzoGonzález:9436,
      author        = "Lorenzo González, Mª Ángeles and Usón Murillo,
                       Asunción and Isidoro Ramírez, Daniel",
      title         = "{Análisis de las tendencias de sal y nitrato en la Cuenca
                       del Río Arba}",
      year          = "2012",
}

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