DOD Not Prioritizing Development of GPS Alternatives, GAO Says - Nextgov
White House, DoT Promote More Dough For GPS Alternatives - Breaking Defense
Building alternatives to GPS - Thetius
Takeaways from the DOT study of GPS alternatives - NextNav
US Department of Transportation Seeking Alternatives to Advanced Navigation GPS | Blogs | Altium
infsoft Blog: Techniques for Indoor Positioning Without GPS
The Top 6 Verizon Connect Alternatives Available on the Mark | GPSWOX
 "NavIC, India's Home-Grown Alternative To The GPS Navigation System")
NavIC, India's Home-Grown Alternative To The GPS Navigation System
Ground-based alternative to GPS achieves 10 cm accuracy – Physics World
Takeaways from the DOT study of GPS alternatives - NextNav
Honeywell demonstrates military-grade alternative navigation tech - GPS World
New Alternatives to GPS - Power & Motoryacht
Alternative to GPS: How to Get Better Accuracy with Images - Mosaic51
The GPS wars have begun | TechCrunch
Tamper Proof GPS Tracker Alternatives | Go Fleet Tracking
GPS Alternatives: DOD is Developing Navigation Systems but is Not Measuring Overall Progress | U.S. GAO
Alternatives to GPS: location tracking with GSM and WiFi | by Darya Yakovleva | Navixy | Medium
DARPA Pursuing Global Positioning System Alternatives
Alternative Navigation Systems
5 GPS Alternatives You Should Know | Beebom
DOD failing to track progress on military alternatives to GPS, GAO says - FCW
Explainer: NavIC, India's home-grown alternative to the GPS navigation system | Reuters
Alternatives to GPS - GPS
Building an Alternative to GPS - IEEE Spectrum
Developing an Alternative To GPS with a HackRF
US Air Force Awards Northrop Grumman GPS III Space Vehicle Alternatives Program Study Contract | Northrop Grumman
