The Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS) – Achievements, prospects and challengesOliver Montenbruck, Stefan Schaer, Kenneth G. MacLeod et al.|Advances in Space Research|2017Cited by 860
Precise GLONASS orbit determination within the IGS/IGLOS – Pilot ProjectRobert Weber, Stefan Schaer, V. D. Glotov et al.|Advances in Space Research|2005Cited by 24
Precise GLONASS orbit determination within the IGS/IGLOS Pilot ProjectRobert Weber, Stefan Schaer, E. Fragner et al.|cosp|2004Cited by 10