@unpublished{TUW-120468, author = {Wagner, Wolfgang}, title = {Validation of microwave soil moisture data using in-situ networks - Where to set our priorities?}, year = {2006}, note = {talk: ESA Workshop, ESTEC, Development of a Global Soil Moisture Network,, Noordwijk, The Netherlands; 2006-03-28 -- 2006-03-29} }