Escuin, S., R. M. Navarro Cerrillo, and P. Fernández. “Assessment of Post Fire Vegetation Cover Using Spectral Mixture Analysis. Application and Comparison of Different Endmember Characterization Methods”. Forest Systems, Vol. 15, no. 1, Apr. 2006, pp. 107-19, doi:10.5424/srf/2006151-00957.