@article{TUW-120724, author = {Hobiger, Thomas and Kondo, Tetsuro and Koyama, Yasuhiro and Takashima, Kazuhiro and Schuh, Harald}, title = {Using VLBI fringe-phase information from geodetic experiments for short-period ionospheric studies}, journal = {Journal of Geodesy}, year = {2007}, volume = {Volume 81}, number = {6-8}, pages = {389--401}, doi = {10.1007/s00190-007-0142-4} }