On the Problem of Identifying the Quality of Geographic Metadata. - Rafael Tolosana-Calasanz; José Antonio Álvarez-Robles; Javier Lacasta; Javier Nogueras-Iso; Pedro R. Muro-Medrano; F. Javier Zarazaga-Soria (ECDL, 2006)

Water Quality Monitoring to Support the European Commission's Water Framework Directive Reporting Requirements. - José Antonio Álvarez-Robles; Miguel Ángel Latre; Pedro Rafael Muro-Medrano; Francisco Javier Zarazaga-Soria; Rubén Béjar (Trans. GIS, 2007)