@unpublished{TUW-119749, author = {Panafidina, Natalia and B{\"o}hm, Johannes and Schuh, Harald and Heinkelmann, Robert}, title = {Long Time series of tropospheric parameters from very long baseline interferometry}, year = {2004}, note = {poster presentation: Cospar 2004, Paris, Frankreich; 2004-07-18 -- 2004-07-25} }