1. Valeur diagnostique des caractéres hydromorphes et halomorphes de vertisols de la vallée du Cauto á Cuba;Bouziques;Cah. Orstom. Pedol.,1992
2. Variation in soil properties caused by irrigation and cultivation in the central Gezira of Sudan;Buraymah;Soil and Till. Res.,1989
3. Castellanos, A. Funcionamiento de un sistema de drenaje soterrado en un Vertisuelo. Ph.D. dissertation, IIRD, La Habana, 1993
4. Dı́az, M., Barandela, R., Utset, A., Fernández. C., 1994. GEOESTAD: Un sistema de computación para aplicaciones geoestadı́sticas, In: Proceedings of GEOINFO, 2nd Iberoamerican Workshop on Geomathematics, Havana, 1994
5. Salinity estimates in irrigated soils using electromagnetic induction;Dı́az;Soil Sci.,1992