Global Positioning System: Theory & Applications (Volume One) (Progress in Astronautics & Aeronautics): Parkinson, Bradford W., Spilker, James J.: 9781563471063: Amazon.com: Books
GPS, How does it work? | ICT #12 - YouTube
Satellite Navigation - GPS - How It Works | Federal Aviation Administration
Introduction to GPS (Global Positioning System) – Part 1 | Jaison's Blog
Figure 2.3 from Graph Theory in Global Positioning System (GPS) | Semantic Scholar