Galileo (satellite navigation) - Wikipedia
ESA - What is Galileo?
Lockheed Martin eyes international customers for GPS augmentation systems - SpaceNews
GPS | Definition, Types, Uses, & Facts | Britannica
What are the various GNSS systems?
GALILEO | European Global Navigation Satellite System
Galileo: Security and Defence Implications of the European GNSS: Galileo vs GPS ? A New Phase in Satellite Navigation: Guney, Cuneyt: 9783330069732: Amazon.com: Books
FCC approves use of Galileo in the U.S.
Europe's Galileo GPS Plan Limps to Crossroads - The New York Times
ESA - Galileo satellites
Global Navigation Satellite Systems - European Security & Defence
China's Rival to GPS Navigation Carries Big Risks
Europe's Future Navigation System: German Firm Awarded Galileo Satellite Contract - DER SPIEGEL
Galileo (satellite navigation) - Wikipedia
What is Galileo? - YouTube
What is SBAS? | EU Agency for the Space Programme
Europe Has Its Own GPS Satellites, and They're More Secure than America's
EU launches Galileo navigation satellite
Robust security protection for GNSS satellite signals - Thales Aerospace BlogThales Aerospace Blog
Europe's GPS' is back in action – DW – 07/22/2019
The EU's Galileo GPS network has been down since last week | TechSpot
European GPS system will now be accessible by US devices - 9to5Mac
Europe's GPS' is back in action – DW – 07/22/2019
