GEMAS: The geochemical mapping of agricultural and grazing land soils of EuropeB. De Vivo, S. Albanese, A. Lima, D. Cicchella, E. Dinelli, P. Valera, C. Reimann, M. Birke, A. Demetriades and the GEMAS Project TeamE3S Web of Conferences, 1 (2013) 38004DOI: https://doi.org/10.1051/e3sconf/20130138004