Fortes, Rafael, María del Henar Prieto, Abelardo García-Martín, Antón Córdoba, Laura Martínez, and Carlos Campillo. 2015. “Using NDVI and Guided Sampling to Develop Yield Prediction Maps of Processing Tomato Crop”. Spanish Journal of Agricultural Research 13 (1), e0204. https://doi.org/10.5424/sjar/2015131-6532.