@unpublished{TUW-180685, author = {Dach, Rolf and B{\"o}hm, Johannes and Lutz, Simon and Steigenberger, Peter}, title = {Evaluation of Atmospheric Loading Modeling Using GNSS Data}, year = {2009}, note = {talk: GGOS Unified Analysis Workshop, San Francisco, USA; 2009-12-11 -- 2009-12-12} }