Discriminating cropping systems and agro-environmental measures by remote sensing José Manuel Peña-Barragán, Francisca López-Granados, Luis García-Torres, Montserrat Jurado-Expósito, Manuel Sánchez de la Orden and Alfonso García-FerrerAgron. Sustain. Dev., 28 2 (2008) 355-362DOI: https://doi.org/10.1051/agro:2007049