Bindlish,R., T. J. Jackson, A. Gasiewski, B. Stankov, M. Klein, M. H. Cosh, I. Mladenova, C. Watts, E. Vivoni, V. Lakshmi, J. Bolten, and T. Keefer. 2008. Aircraft-based soil moisture retrievals under mixed vegetation and topographic conditions. Remote Sensing of Environment 112 (2008) 375?390. Refer to the USDA SMEX04 Web site (http://hydrolab.arsusda.gov/smex04/
) for in-depth information on the science mission and goal of the SMEX project.