S. López-Cuervo Medina, R. Rodríguez-Solano Suárez, and A. De Blas Gutiérrez de la Vega, “Integrating photogrammetry into raster and vector information systems for setting databases for engineering projects”, Span. j. agric. res., vol. 7, no. 3, pp. 495-502, Sep. 2009.