NASA - National Aeronautics and Space Administration

Wu, Z., P. Thenkabail, R. Mueller, A. Zakzeski, F. Melton, L. Johnson, C. Rosevelt, J. R. Dwyer, J. Jones, and J. Verdin (2014), Seasonal cropland mapping using the Automated Cropland Classification Algorithm (ACCA), J. Applied Rem. Sens., 8, 083685, doi:10.1117/1.JRS.8.083685.