DescriptionGPS Refraction.svg English: GPS Refraction Deutsch: GPS Refraktion Date 20 December 2010 Source Own work Author Trex2001 SVG development InfoField...
DescriptionGPS Satellite.svg English: GPS Refraction Deutsch: GPS Refraktion Date 29 October 2017 Source Own work based on: GPS Refraction.svg Author Trex2001...