GPS on smartphones: Testing the accuracy of location positioning
Here's how to turn Your Smartphone into a GPS Navigation Tool
Navigation with smartphones and handheld GPS devices - Wilderness Magazine
How accurate is mobile phone GPS? - Quora
Measuring Smartphone GPS accuracy – Oplopanax Horridus
How to Fix Wrong Google Maps GPS Location on Android?
PDF) On the (In-)Accuracy of GPS Measures of Smartphones: A Study of Running Tracking Applications
Navigating the Future: The Latest in GPS Technology | Technology
Android phone location data is about to get a lot more accurate | Engadget
GPS.gov: GPS Accuracy
Do smartphones have real GPS? - Quora
GPS.gov: GPS Accuracy
How to improve GPS accuracy on Android | nextpit
An In-depth Exploration into How Accurate is GPS
Is High-Precision GNSS Coming to Your Smartphone? - xyHt
ESA - Dual-frequency smartphone app winners prove power of two
Precision GPS | NASA
Mobile phone tracking - Wikipedia
/cdn2.vox-cdn.com/uploads/chorus_asset/file/7902407/akrales_170118_1387_A_0009.0.jpg "GPS will be accurate within one foot in some phones next year - The Verge")