GPS: Verskil tussen weergawes
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k Kategorie:Aardmeetkunde bygevoeg (HotCat.js) |
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Lyn 15:
* [http://vectorsite.net/ttgps.html Greg Goebel's "Navigation Satellites and GPS"]
* [http://www.kraftvoll.at/software/ Gpsdrive - GNU Map-based navigation system]
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