1. European GNSS (Galileo) Open Service Signal in Space Interface Control Document,2015
2. European GNSS (Galileo) Galileo Open Service Service Definition Document,2016
3. First Galileo FOC Satellite on the Air—Will Be Employable for Surveying, Precise Positioning, and Geodesy;Steigenberger;GPS World,2015
4. Validation of Galileo orbits using SLR with a focus on satellites launched into incorrect orbital planes