lat lon - Measuring accuracy of latitude and longitude? - Geographic Information Systems Stack Exchange [http://gis.stackexchange.com/questions/8650/measuring-accuracy-of-latitude-and-longitude/8674#8674] - 2016-09-14 10:11:13 - public:speqz gps, precision - 2 | id:251797 -
GPS tracking | [https://trackingtheworld.wordpress.com/tag/gps-tracking/] - 2016-07-14 20:07:36 - public:speqz gps - 1 | id:251802 -
