The ESA Earth Observation Summer School 2010 on Earth System Monitoring and Modelling was held August 2-13, 2010, in Frascati, Italy: http://earth.eo.esa.int/eosummerschool/envschool/ Wolfgang Wagner was one of the lecturers, giving three talks on the use of microwave remote sensing for soil moisture retrieval and its applications:
A short introduction to microwave remote sensing of the land surface (Download here...)