@inproceedings{TUW-119259, author = {B{\"o}hm, Johannes}, title = {Tropospheric zenith path delays derived from GPS used for the determination of and VLBI stations heights}, booktitle = {IVS 2002 General Meeting Proceedings}, year = {2002}, pages = {219--222}, publisher = {TU Vienna, Institute of Geodesy and Geophysics}, address = {N.R. Vandenberg and K.D. Baver} }