Monitoring Vegetation Moisture Using Passive Microwave and Optical Indices in the Dry Chaco Forest, Argentina. - Verónica Barraza; Francisco Grings; Paolo Ferrazzoli; Mercedes Salvia; Martin Maas 002; Rashid Rahmoune; Cristina Vittucci; Haydee Karszenbaum (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2014)