@inproceedings{TUW-224342, author = {Rizos, Chris and Montenbruck, Oliver and Weber, Robert and Weber, Georg and Neilan, Ruth E. and Hugentobler, Urs}, title = {The IGS MGEX Experiment as a Milestone for a Comprehensive Multi-GNSS Service}, booktitle = {Proceedings of the ION 2013 Pacific PNT Meeting}, year = {2013}, pages = {289--295}, publisher = {Institute of Navigation} }