@unpublished{TUW-120056, author = {Weber, Robert and Br{\"o}derbauer, Veronika and Englich, Sigrid and Klaffenb{\"o}ck, Elisabeth}, title = {Near real time ZTD and IWV estimates using ground based GNSS data}, year = {2005}, note = {poster presentation: IAG 2005, Cairns, Australia; 2005-08-22 -- 2005-08-26} }