Ruxandra VINTILA (2017). A NATIONAL-SCALE ASSESSMENT OF THE TOPSOIL CLAY CONTENT MAP OF ROMANIA DERIVED FROM THE LUCAS SURVEY. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing, 359-368. https://doi.org/10.5593/sgem2017/23/s11.044