@unpublished{TUW-119758, author = {Panafidina, Natalia and Heinkelmann, Robert and B{\"o}hm, Johannes and Schuh, Harald}, title = {Long Time series of Tropospheric Parameters from Very Long Baseline Interferometry}, year = {2004}, note = {poster presentation: PORSEC 2004, Concepcion, Chile; 2004-11-30} }